Suigetsu Hōzuki

is a shinobi from Kirigakure's Hōzuki clan. Heralded as the, Suigetsu dreams of gathering all the swords of the Seven Ninja Swordsmen of the Mist. This dream was cut short when he was captured by Orochimaru, but by joining forces with Sasuke Uchiha he finds an opportunity to resume his pursuit.

Background
Suigetsu was born in Kirigakure and was reputed alongside his brother, Mangetsu, to be the incarnation of the demon Zabuza Momochi. He and Mangetsu aspired to inherit the title of Seven Ninja Swordsmen of the Mist. This acted as their motivation to finish cruel missions day by day. While Mangetsu eventually became one of the seven, Suigetsu's motivation was shattered with the premature death of his brother, and he changed his ambition to "collecting all of the swords", in order to retrieve all seven original blades that have been passed down by the swordsmen, so that he could rebuild the group and become its leader.

With the humiliation of being captured and experimented on by Orochimaru and Kabuto Yakushi, his ambition was put on hold. Through these experiments, Kabuto at least, was able to replicate Suigetsu's unique secret ability to liquefy himself at will. At some point in the past, he had to fight with Jūgo.

In the anime, about two years after Sasuke joined Orochimaru, the young Uchiha delivered a vial for research on Suigetsu. Upon seeing the young Uchiha, Suigetsu asked Sasuke to free him, who simply said he had to prove his strength. As the medical-nin came in to begin their tests, Suigetsu noticed one of them was in a daze (unaware he was being controlled by Sasuke's Sharingan). The medical-nin then opened Suigetsu's chamber, allowing him to break free from the base. Soon afterwards, he was pursued by Sasuke and Karin. Using his various water abilities, he was able to fend off the duo. Taking Sasuke's sword and delighting in its design, he attacked Karin, only to be caught off guard and subdued by her chakra chain, allowing Karin to take him back to the base.

Personality
Suigetsu appears to be indifferent, caring only for a few things around him. He spends a considerable amount of time mocking and/or being beaten up by Karin. Despite showing initial dislike towards his team-mates, Suigetsu has grown fond of them, and was willing to risk his own life to protect them against the Eight-Tails, showing care for his team-mates.

Kisame Hoshigaki claims that Suigetsu is a prodigy in the art of murder, as he has a habit of chopping off his victim's limbs before beheading them. Suigetsu, despite addressing him with the honourific term "senpai", wants to defeat him and take his sword, noting to Sasuke that he will one day serve him as "shark fin soup" (a reference to Kisame's shark-like appearance) after Sasuke suggested that he was not yet strong enough to defeat Kisame, showing it to be a sign of sarcasm rather than respect for Kisame.

As a prodigy at the art of murder, Suigetsu has a certain love for killing, but he refrains from doing so at Sasuke's request. However, there are several occasions where he has killed people when he believed Sasuke wouldn't notice. Suigetsu has been shown to have thoughts such as "just this once" and "he'll forgive me". However, he was noticeably upset that Sasuke killed several samurai during the attack on the Kage Summit, pointing out how many times Sasuke had told him not to kill anyone, his anger may have had more to do with Sasuke being a hypocrite than the samurai's deaths. He was described to have a belligerent personality, witnessed through his hostile and aggressive attitude most times.

Suigetsu, despite being hasty in anger, has shown moments of keenness and a calm attitude, such as discerning Killer B's ability as a swordsman, as Suigetsu is one himself. Other moments were when he realised Sasuke used a space-time ninjutsu with Manda to escape Deidara's blast. He was also able to predict Killer B's attack on Sasuke, which would have been fatal if Suigetsu had not stepped in to block the blow.

Suigetsu has a passion for collecting exotic swords: he made it his goal to collect all the swords from the Seven Ninja Swordsmen of the Mist. He took Zabuza Momochi's Kubikiribōchō and joined Hebi only to take Kisame Hoshigaki's Samehada. He even went into great detail to explain about the seven swords to Jūgo, with a passionate tone to his storytelling. He also cares a great deal for his swords, shown when he went back to retrieve his Kubikiribōchō after losing it in the fight against Killer B. However, his passion doesn't seem to be entirely limited to the seven blades, as he also expressed interest in Darui's sword. His ultimate goal however, is to collect the seven blades, so he can reform the Seven Ninja Swordsmen of the Mist and become their leader. Along with this passion for collecting swords, Suigetsu is very mischievous and as such, takes great joy in foiling Karin's plans to be alone with Sasuke and has stated that it is his second favourite thing to do. By his own admission, Suigetsu has an impulse to cut things up, be it a person or relationships, as he does with Sasuke and Karin.

Suigetsu apparently also likes animals somewhat seen from his attempt to play with the talking ninja cats from the abandoned Uchiha warehouse at one point. He also lectured Sasuke on treating animals better after Sasuke used Manda to shield himself from Deidara's suicide technique, which resulted in Manda's death. Suigetsu also has what seems to be a chronic fear of Orochimaru, which is to be expected due to the latter imprisoning and experimenting on him. This fear was witnessed when Sasuke declared that he would revive Orochimaru and Suigetsu's ensuing attempt to dissuade him from doing so. When Orochimaru was revived, Suigetsu even refused to stay on the same side of the cave with him, retreating to opposite ends depending on where Orochimaru went. On the other hand while always being wary of Orochimaru and his intentions, Suigetsu willingly offered to help his former jailer attack Konoha and then later even referred to Orochimaru using honourific while obeying his orders.

While showing courage against such fearsome opponents like Killer B, even taking a Tailed Beast Ball for his comrades, Suigetsu also has a cowardly side at times. Despite his confidence (if not arrogance), he would show a rather cowardly side when someone of a clearly higher calibre directs their killing intent at him, as he hid behind Orochimaru in fear during an exchange between Tobirama and Hashirama Senju. He also seems to retain a sarcastic sense of humour even in serious situations, this trait being exemplified when, as Kabuto was healing Sasuke, he asked Kabuto if he was trying to absorb Sasuke, and if he wanted to be 'Kabuke' or 'Sasuto'.

Appearance
Suigetsu is a lean-built young man of average height, straight white hair with a light-blue tint to it in the anime, almond shaped purple eyes, and like most of the members of the Seven Ninja Swordsmen of the Mist, he has pointed teeth — one of which sticks out even when his mouth is closed. He wears a purple, sleeveless shirt with blue pants, sandals and a belt around his waist with water bottles attached to it.

He also wears another belt strapped to his chest which he uses to carry the Kubikiribōchō. Due to his special body, Suigetsu is able to alter his form at will, usually to aid in his techniques and when rendered unconscious, he is reduced to a jelly-like state. Whenever he is seen recovering from these unconscious states he is placed in a large tank of water and resembles a fish-like being.

Years later, Suigetsu opted to wear a dark, high-collared button down attire which had light-coloured, upturned sleeves. He wore two belts around his waist, a simple one and another larger one with two pouches — one at each side.

Abilities
Suigetsu is a very capable shinobi. Akatsuki member Kisame Hoshigaki referred to him as a child prodigy in the art of murder, and that he is practically the reincarnation of Zabuza Momochi. Suigetsu was even shown to be able briefly go up against Killer B, a perfect jinchūriki, while in his Tailed Beast Mode.

Hōzuki Clan Techniques and Nature Transformation
As a member of the Hōzuki clan, Suigetsu is well-versed in the clan's secret Water Release technique to transform his body into a liquid form, and to return to his solid bodily form at will. This gives him a higher level of control for his various Water Release techniques, able to perform them without hand signs. This ability also allows him to change his body shape, giving him the ability to increase the size of his limbs, thus proportionally increasing his strength if necessary. It also makes striking him somewhat difficult; since he is made of liquid, any regular strike will go right through his watery form. When struck, part of the water he turns into can also split from his body, and be manipulated, for example, making a water blob around one's head to drown them. In the anime, he can also camouflage himself to go about unseen.

As his body is water, he is also capable of merging with already existing water to increase his attack range, as seen when he fought against Killer B, and utilise it for large scale Water Release techniques. When he passes out he enters a jelly-like state, as seen in the battle against Killer B. Also he can fire compressed, highly pressurised water bullets from the tips of his index fingers, that can cause great damage, able to fire it from both hands. A supplementary usage of his techniques is the ability to gather information via water such as rain, seen when he learned about the Fourth Shinobi World War after his imprisonment. In the anime, Suigetsu is also shown capable of creating clones made of water.

Suigetsu is seen carrying water bottles with him, as he frequently needs to consume water in order to stay hydrated. Due to his water-like body, he exhibits weakness against lightning-based techniques, as exhibited in his defence of Sasuke against Killer B's chakra-charged strike. Suigetsu is also capable of using Wind Release.

Kenjutsu and Physical Prowess
From his training days with the Seven Ninja Swordsmen of the Mist, Suigetsu is quite adept at wielding Zabuza Momochi's Kubikiribōchō. However, he lacks the high degree of physical strength Zabuza had, as carrying the sword around for long distances seems to tire him out. Nonetheless, he was able to uproot a massive amount of earth when he swung the blade down at Killer B, despite the latter absorbing a good deal of the force. Furthermore, his Hydrification Technique allows him to expand the muscles in his arms to help him wield such a heavy weapon with more ease. Suigetsu has shown to be very fast, witnessed when he intercepted Killer B's attack, and later the Fourth Raikage's attack, on Sasuke. His swordmanship skills allowed him to go toe to toe with another skilled swordsman like Darui with a half-severed Kubikiribōchō. Even without a sword, he has proven to be a capable taijutsu fighter, as seen when defeated hundreds of Tenzen Daikoku's men with little effort.

Itachi Pursuit Mission
Immediately after Sasuke defeated Orochimaru, he went into one of Orochimaru's many experimentation labs and freed Suigetsu, who was sealed inside a holding tube. After threatening Sasuke, gesturing his hand to perform his clan's Water Gun Technique, he pointed out that he owed nothing to Sasuke for dealing with Orochimaru as there were many who wanted to do it and it was just a case where Sasuke was able to, because he was always in close proximity to Orochimaru. Suigetsu nevertheless agreed to join him in the hopes of meeting Kisame and taking Samehada for himself. Once they left, Suigetsu had Sasuke take him to the Land of Waves to retrieve Zabuza's Kubikiribōchō from his grave. In the anime, the sword in question was taken from Zabuza's grave by a politician and crime boss named Tenzen Daikoku, who wanted to take the sword as a trophy, and for "revenge" after losing many men during Zabuza's attempted coup years before.

After Kubikiribōchō was retrieved, Suigetsu and Sasuke then went to the base where Karin resided, where Suigetsu was instructed to free all the prisoners. Before releasing them, however, Suigetsu told them to spread the word that Sasuke killed Orochimaru, and would bring peace to the world. As Sasuke hadn't ordered him to say these things, his motives appear to be unclear.

Once Karin was persuaded to join, they headed to meet with Jūgo. They had to fight their way through an army of people branded with the Cursed Seals to reach him, and, under Sasuke's orders, were told not to kill any of them whilst subduing them. When they found Jūgo, who promptly attacked them, Suigetsu attempted to kill him. However, Sasuke intervened, and threatened to kill both of them if they didn't stop fighting. Jūgo eventually calmed down, and, with some persuasion on Sasuke's part, was recruited. Afterwards, Sasuke told them their mission and their new team's name; they would be known as "Hebi", and their mission was to find Itachi Uchiha.

Soon afterwards the team split up, searching for information about Itachi's whereabouts. This led Suigetsu to a bank where Akatsuki member Kakuzu's banker Ginji was. Recognising him as such, Suigetsu threatened him to talk. Seeing Deidara's large suicide bomb's explosion, Suigetsu was drawn to the site of Sasuke's battle with Deidara, where he had used a special seal to summon Manda and had used the snake to escape the explosion. It had, however, been a little too late, and Manda died, making Suigetsu tell Sasuke that he should treat animals a little better.

Fated Battle Between Brothers
After they had rested and continued on their way, Sasuke found Itachi in an Akatsuki hideout. The clone of Itachi then guided Sasuke to an Uchiha hideout. On their way there, the group encountered Kisame, who told them Sasuke must go alone. Leaving Hebi behind, Suigetsu challenged Kisame to a battle, who gladly accepted, while Sasuke finally made Itachi's death a reality. It was later revealed that Zetsu interfered in the fight, leaving both Suigetsu and Kisame alive.

Pain's Assault
Hebi, now renamed "Taka", began working with Akatsuki. They went to Kumogakure and confronted Killer B, the jinchūriki of the Eight-Tails. Suigetsu attacked him first, but was quickly disarmed. Both Jūgo and Sasuke's individual attempts at subduing Killer B failed as well, and Sasuke would have suffered fatal injuries had Suigetsu not intervened to spare him a finishing blow from the jinchūriki. However, Killer B's electric attack overwhelmed Suigetsu, cleaving a substantial tear in his sword, and it would have severed in half had Sasuke not nullified the attack in time.

After Karin healed Sasuke, Suigetsu, together with Jūgo and Sasuke, engaged Killer B once more to no avail. At one point, Suigetsu succeeded in immobilising Killer B providing an opportunity for Sasuke to use a lightning attack. Unfortunately, to keep Killer B held, Suigetsu voluntarily received Sasuke's lightning technique as well, sustaining considerable damage.

After severely wounding Sasuke, Killer B invokes his tailed beast form in order to deal with the rest of the group. Suigetsu, thrown into the water earlier, emerged, using the body of water, to save his team-mates from what would been a devastating blow. Keeping the Eight-Tails at bay momentarily, Suigetsu valiantly told his weakened team members to escape, though somewhat amused that he was risking his life for them. When Killer B tried to use a Tailed Beast Ball on the team, Suigetsu used himself as a shield, keeping his team-mates safe.

Although Suigetsu was left unconscious, he managed to gain the time Jūgo needed to revive Sasuke. By unleashing Amaterasu on the Eight-Tails, Sasuke was able to turn the tide, at last successfully capturing the Eight-Tails jinchūriki. After the battle was over, Jūgo carried Suigetsu away.

While Taka recuperated, Suigetsu recovered in a tank of water. He yelled at Karin for leaving his sword behind, but was later seen to have recovered it.

Five Kage Summit
Once healed, Taka set out for Konoha. Along the way they were intercepted by Tobi, who informed them of Konoha's destruction and their failure to capture the Eight-Tails. He convinced Sasuke to go to the Kage summit to kill Danzō, so Zetsu led them to the Land of Iron. Upon their arrival Suigetsu scouted the area, in order to find a way to the summit, but he found that there were too many samurai patrolling the area. Jūgo found them an alternate route, where they were attacked by the samurai, having been exposed by Zetsu. As Sasuke killed their attackers, Suigetsu pointed out that he (Sasuke) was doing the very thing he forbid him to do. The Fourth Raikage soon arrived to fight Sasuke and Suigetsu tried to help, but the Raikage breaks his Kubikiribōchō in half. He used what remained of his blade to fight Darui, and was able to hold his own, until Darui infused his own blade with electricity, allowing him to overpower Suigetsu and pin him to a wall. When Sasuke destroyed the room they were in, Suigetsu was freed. He retrieved his sword and regrouped with Jūgo. They contemplated following Sasuke and the Raikage, but decided that it would be too dangerous. Instead, they dressed up as samurai to gather information while avoiding drawing attention to themselves, at Suigetsu's suggestion. They were quickly detected, and Jūgo stated that it wasn't the best plan.

Fourth Shinobi World War: Confrontation
As the war was being waged, Suigetsu and Jūgo escape their cell in the Land of Iron, having taken care of the guards, and stating that security had gotten looser. Suigetsu said he wanted to go looking for his Kubikiribōchō, to which Jūgo agrees to help. He then states that Jūgo is nicer than Karin, and then they decide to look for her as well. During their search for the sword, Jūgo asks why Suigetsu, being a person who gets bored easily, is so particularly obsessed with those swords. Suigetsu then reveals his dream of reforming the Seven Ninja Swordsmen of the Mist and becoming their leader.

Fourth Shinobi World War: Climax
Suigetsu and Jūgo escape from the samurai compound. They walk through a forest and discuss their plans. Suigetsu tells Jūgo that even if they reunited with Sasuke and Karin, it wouldn't be a grand reunion of sorts as Karin wanted Sasuke to herself in order to seduce him. As they continue onwards, Suigetsu tells Jūgo that they'd continue to get in Karin's way which was his second favourite thing to do after collecting swords. They proceed to head towards one of Orochimaru's hideouts. On the way there, they learn about the war. After arriving, Jūgo and Suigetsu have a brief conversation before Jūgo loses control and attacks Suigetsu, who is unharmed. Breaking into a wall, Orochimaru's secret room is discovered and within it, Suigetsu finds a scroll — the contents of which greatly shocked him. He took the scroll and stated that it could be beneficial to Sasuke, and to possibly allow them to gain control of the war.

Later, when Sasuke was left to contemplate his future actions after Itachi's soul had been released, Jūgo and Suigetsu broke through the roof of the cave, and declared that they had finally found him. Suigetsu examined Kabuto's body and expressed his disgust at Kabuto's navel-snake while Jūgo found Anko Mitarashi unconscious on the cave's floor. When Sasuke asked them their purpose of coming there, Suigetsu handed him the scroll — the one with which he exclaimed that their group could use that to rule the shinobi world with — and making him cognisant of reincarnated Madara's presence even though Itachi forced Kabuto to release the Impure World Reincarnation, which left Sasuke dumbfounded.

After Sasuke declared that he would revive Orochimaru, Suigetsu vehemently opposed this and tried dissuading Sasuke from his actions to no avail. When Orochimaru emerged from Anko's Cursed Seal of Heaven, Suigetsu retreated behind Kabuto's immobile body and sheepishly greeted his former captor. Shocked when he heard that Orochimaru was not interested in the war that was going on, Suigetsu then quickly relocated to the other side of the cave when Orochimaru moved towards Kabuto. Declaring that Orochimaru was going to kill Kabuto, he is corrected by Jūgo who noted that Orochimaru was only draining his own chakra from within Kabuto. He later listened on, confused as Orochimaru told Sasuke that they were going somewhere he knew well.

Arriving in Konohagakure, Suigetsu and the others sensed Naruto Uzumaki's chakra from a great distance away. Unperturbed, Sasuke told them to press on to their destination. Arriving at a dilapidated temple, the group enters the shrine and retrieved a mask. Glad to have left the temple which spooked him somewhat, Suigetsu conversed with Orochimaru about his own desire to crush the village, as they re-entered Konoha and headed towards the Naka Shrine. Heading into the secret hall beneath the ruin, Suigetsu watched on as Orochimaru began the ritual, and assisted by subduing one of the White Zetsu clones which Jūgo activated using natural energy. Prying open the clone's mouth, Suigetsu prepared to clone for Orochimaru's abdication from his own wounded body and into the clone's. Suigetsu later watched on as the four previous Hokage are reincarnated. Marvelling that Hashirama Senju stood before him, Suigetsu was later underwhelmed by how contrary the legend's personality was. He would later cower in fear, however, as Tobirama and Hashirama faced-off when the former wanted to attack them because of Sasuke's declaration to exact revenge on the village. Stuck in a half-liquid form, Suigetsu cowered behind Orochimaru as the Naka Shrine is almost destroyed around them from the encounter.

Listening on as the dialogue between the Hokage and Sasuke, Suigetsu is shocked to hear that Sasuke was joining to battle to stop Madara and protect his brother's sacrifice. Questioning Jūgo as to what he would do, Suigetsu was further dismayed to hear that he would remain by Sasuke's side. Not wanting to be caught in a war with what he considered the four most powerful reincarnations and three monsters, the young man schemed to escape as soon as he got an opportunity. His escape, however, was cut off by Karin's appearance where they were as she began to pulverise the confused Suigetsu. The young man would later note that now an idiot had joined the fray. Afterwards, he accompanied Orochimaru and Karin to the location of the five Kage, watching as the former commented on Tsunade's bad condition.

Commenting on the size of the slugs before them, Suigetsu wondered just how much salt would be needed to kill them which struck up an argument between him and Karin. After being threatened by Orochimaru, the two made their way towards Tsunade to heal her. Suigetsu pieced the Hokage back together while Karin healed her. Afterwards, the trio took their leave from the Hokage, making their way to the main battlefield.

Birth of the Ten-Tails' Jinchūriki
Upon arriving on the battlefield, Suigetsu greeted Jūgo and Sasuke before commenting on the size of the Ten-Tails' tree form and just how long it would take to cut it down. Interrupting Karin's daydream about Sasuke, Suigetsu reminded her that her role on the battlefield would be to to help in the recovery of the shinobi. After the Allied Forces managed to separate Obito from the Ten-Tails, a Tobi appears and ravaged the forces. Suigetsu and his team then engaged the Zetsu. Though first surprised as Karin led the charge manifesting Adamantine Attacking Chains, he follows up her attack with his Water Gun: Two Guns technique, which destroyed part of Tobi's head revealing someone inside the clone. The team is able to elude their assaulter and with that, hastily made their way to where Sasuke was, to which Karin grimly said a sinister chakra was near him.

Upon arriving, they discovered the new chakra signature was from Kabuto, having escaped the loop of Itachi's Izanami. While Suigetsu assumed Kabuto was trying to assimilate, having merged his being with Sasuke, Kabuto plainly stated that he no longer desired Sasuke, rather was attempting to heal him. Orochimaru asks his former assistant why he was doing this, Kabuto explained that his experience under Izanami's power restored his clarity on who he really was, now merely wishing to return to the Konohagakure orphanage he grew up in. Suigetsu didn't believe Kabuto as he helped instigate the war in the first place. Kabuto solemnly admitted his mistake, selfishly involving the world in his own personal problem and sought to correct it. Eventually, Kabuto succeeded in healing Sasuke, who quickly returned to his feet and was ready to resume the battle. Suigetsu and the others were later caught in the Infinite Tsukuyomi cast by Madara.

Kaguya Ōtsutsuki Strikes
Ultimately, he and the rest of the world were freed from the genjutsu by Naruto and Sasuke after they ended the war.

Sasuke Shinden: Book of Sunrise
Years after the war, Suigetsu encounters Sasuke for the first time since it ended. Sasuke arrives at his hideout to collect information on the Dark Thunder Group from Orochimaru; however, he doesn't stay long to speak with his former team-mates. Suigetsu tells Jūgo and Karin that he is curious why Sasuke continues travelling and refuses to officially settle down in Konoha; Karin explains that Sasuke's Sharingan and Rinnegan earn him enemies and he is avoiding the village to protect it.

Naruto Gaiden: The Road Illuminated by the Full Moon
Years later, he assisted Orochimaru in the experiment that resulted in Mitsuki. After five failed attempts to bring out Mitsuki's independence, Suigetsu feigned an attack on him, testing to make sure that the boy's ninja skills remained intact after having his memories erased so many times. After satisfied that Mitsuki was fine, he brought the boy to Orochimaru for a final test disguised as a mission.

Sarada Uchiha Arc
Fifteen years after the war, when Sasuke, Naruto Uzumaki, Sarada Uchiha and Chōchō Akimichi came to learn about Shin Uchiha, they were greeted by Suigetsu and Jūgo. The group then followed Orochimaru into the depths of the hideout to discuss the situation. Sarada, however, asked Suigetsu about Karin's whereabouts to which he replied that Karin was in a different hideout. Suigetsu, much to his shock, found it hard to believe when Sarada discussed with him about the possibility that Karin was her biological mother; this made Suigetsu recall Karin's previous intimate approach she tried to make with Sasuke in the past. Sarada requested for his assistance in checking whether Karin was her birth mother or not. Suigetsu found a strand of Karin's DNA in her desk (not knowing that it was Sarada's umbilical cord), and used it to run a test with that of Sarada's, which revealed a perfect match; Suigetsu also commented about the similar glasses between Sarada and Karin. Feeling awkward, Suigetsu left, but not before Naruto, who was listening to their conversation, scolded him for bringing this situation up for the young Uchiha, to which he then claimed that it wasn't his fault but Sasuke's. Later, Suigetsu joined Orochimaru in aiding Sasuke to find Shin. Sasuke then activated his Rinnegan and prepared to go in his Susanoo.

Some time after Shin's defeat, Karin scolded Suigetsu for touching her belongings, explaining to him that he had used Sakura and Sarada's umbilical cord in the DNA test. She also explained that she personally delivered Sarada, confirming that Sakura was Sarada's biological mother. Karin then demanded for Suigetsu to apologise to Sarada for his mistake and ordered him to send Sarada a new pair of glasses.

School Trip Arc
In the anime, as Shizuma Hoshigaki began efforts to start a revolution against the Sixth Mizukage and his new peaceful era, Suigetsu began following his actions unseen, viewing Shizuma's skill as capable but his true noteworthy trait being his aggression. Later, after Shizuma stole the Seven Mist Swordsmen's swords, Suigetsu met up with Mitsuki, telling him that he was given orders by Orochimaru to not get involved. Mitsuki however smugly stated that Orochimaru knows well that he does as he feels. Suigetsu quickly realised that they were being watched by Inojin Yamanaka and Shikadai Nara, catching them by surprise. As the two were convinced to help, Suigetsu gave Mitsuki a scroll to help in the matter. It was revealed to have information and proof of Shizuma and his followers not only conspiring with the Land of Waves, but also killing various people in Kirigakure who learned of his plans and refused to help him.

Later, after Shizuma's group was defeated and arrested, Suigetsu reported his findings to Orochimaru, who surmised that Chōjūrō covered up the incident in fear of regressing the village to its darker times. Orochimaru also realised that Suigetsu gave his findings to Boruto, which helped clear Chōjūrō of the false allegations of him killing people against the peace treaties. While not wanting to have gotten involved in the political matters, Orochimaru decided not to dwell on it, much to Suigetsu's relief.

Mitsuki's Disappearance Arc
In the anime, when Mitsuki seemingly betrayed Konohagakure, Boruto Uzumaki snuck into Orochimaru's hideout for answers. Suigetsu found Boruto staring in horror at the test tubes containing copies of Mitsuki. As he held a blade at the intruder, Orochimaru arrived, telling Suigetsu to stand down as the Sannin decided to answer the boy's questions. Later, knowing that Konohagakure would send a team to retrieve Boruto and Sarada, Orochimaru sent Suigetsu (while concealing his identity) to stall the two genin's pursuers long enough for them to reach Ryūchi Cave.

Jūgo Arc
In the anime, when Jūgo abruptly left the base to deal with an outbreak of cursed seals infecting wildlife, Orochimaru tasked Suigetsu and Karin with retrieving him. They ultimately encountered the Konoha genin of Team 7 and Team 15. They explained that Jūgo was apprehended by researchers from the Land of Rivers. From Sumire Kakei, they learned that two assailants had special collars that let them harness cursed seals of their own. Realising that this duo was working with the Land of Rivers' researchers, they concluded the outbreak must have been stared by them. While Suigetsu insisted on just assaulting the enemies and taking Jūgo back by force, the others insisted that they had to be more cautious due to the innocent bystanders, as negative outcomes due to Suigetsu's and Karin's involvement could endanger Orochimaru's already dubious truce with the world.

As the group separated to handle parts of the rescue, Suigetsu joined Boruto in finding Jūgo. They managed to find Tosaka, where after explaining the situation, he lead them to where Jūgo was being held. Before they could free him, Tosaka subdued them with tranquillisers, revealing to be working in league with the researchers and cursed seals operation. As he continued to exposit on his motives, Suigetsu attempted to free Jūgo, but was tasered by other researchers. When Boruto attempted to free Jūgo, he protected him from an attack of Tosaka's cursed seal weapon before being tasered again.

Tosaka injected Jūgo with a drug to force his full transformation to test his cursed seal against an original cursed seal's power. Jūgo broke free and the others ran after him, leaving Suigetsu behind. Suigetsu crawled after them and was met on the way by Konohamaru and Mitsuki, who had acquired a serum to remove the cursed seal infection. The three arrived at the lake after Tosaka was defeated and Jūgo's rampage broken, just in time to stop Sarada from killing the birds. Suigetsu consumed the serum, and merged with the lake, using its water to rain down the serum over the birds, curing them. Suigetsu left with Karin and Jūgo, taking a powerless Tosaka with them, and teased Karin over her concern for Sarada.

Kara Actuation Arc
In the anime, as Suigetsu was sleeping in his tank, he was approached by Team 5. The genin were looking for Orochimaru for a favour. Suigetsu said he was too busy and quickly told them to leave. The genin refused to accept that and decided to subdue him. Suigetsu however quickly proved too powerful and swiftly overwhelmed them. The commotion quickly alerted Orochimaru. As the Sannin was intrigued by such inexperienced genin coming to address him directly for a request, he and Suigetsu were left stupefied by their mere request for his autograph. While finding the request trivial, Orochimaru agreed to it.

Later, as Mitsuki's replacement organs were almost viable, Suigetsu returned with news of Mitsuki's team. He revealed they all returned the Land of Valleys. While the genin and jōnin respectively went for different reasons, Suigetsu suspected that there was a connection between the two. As Suigetsu's speculations roused Mitsuki into leaving prematurely, an annoyed Orochimaru decided to punish Suigetsu for his reckless words by using him as a test subject for another experiment, much to his horror.

Trivia

 * The name "Suigetsu" literally means, which is a poetic term for the moon reflecting on the surface of the water. As an extension of this, the word can also refer to something illusory, without true substance; perhaps referring to Suigetsu's ability to turn his body into water. His family name "Hōzuki" means , which is the Japanese word for the Chinese Lantern, a plant bearing fruit which resemble Chinese paper lanterns; like all members of the Seven Ninja Swordsmen, his surname is derived from a type of produce.
 * The full phrase of which Suigetsu's name comes is, meaning the moon reflected in water and a flower in a mirror are things that can be seen but not held; this is a Chinese proverb for seeing and desiring something that is a dream that cannot be easily grasped in hand, teaching people about temptations.
 * Suigetsu seems to need to keep himself hydrated by drinking water, especially when travelling long distances.
 * According to the databook(s):
 * Suigetsu wishes to fight Kisame and the other Seven Ninja Swordsmen members.
 * Suigetsu's favourite foods are jello or yogurt (preferably anything drinkable), while his least favourite is dried cuttlefish.
 * Suigetsu's favourite phrase is.
 * Suigetsu's hobby is looking after his beloved sword.
 * Suigetsu has completed 92 official missions in total: 2 D-rank, 33 C-rank, 40 B-rank, 13 A-rank, 4 S-rank.
 * In the third databook, Suigetsu is said to be 177.4 cm, while Sasuke Uchiha is said to be 168 cm despite them being shown to be relatively the same height.
 * Studio Pierrot's Settei sheets give his Shippūden height as 170.4 cm.
 * In the omake of Naruto: Shippūden episode 161, he asked Karin the reason why she is in the male's room. He then looks for his toothbrush, which was mistakenly taken by Karin, thinking it was Sasuke's.
 * While not officially a member of the Seven Ninja Swordsmen of the Mist, he can be used in the Ninja Storm games alongside actual members to form the Seven Ninja Swordsmen of the Mist team.
 * Even though he is afraid of Orochimaru at first, when he and Jūgo arrive at Konohagakure, he suggests that they should destroy the village while all the shinobi are in combat with the Ten-Tails, revealing that he still pledges some vestige of loyalty to Orochimaru. However, Orochimaru claims that he is no longer Hebi, or of the snake, referencing to Jūgo and Suigetsu's joining up with Sasuke and forming Taka.

Quotes

 * (To Sasuke) "You really do talk like you're in charge… Let's make our relationship extremely clear, shall we? Just because you defeated Orochimaru, doesn't put you in charge here… Everyone was after him, someone would have taken him out sooner or later… Orochimaru liked you, otherwise you'd be locked up, not by his side. You simply had more chances to kill him than the rest of us."
 * (After finding the Kubikiribōchō) "I'm amazed it's somewhere like this… Zabuza, this is mine now. It's heavy… the great beheading sword of the the demon Zabuza of Kirigakure!"
 * (To his team) "Aren't you guys tired? Let's take a break."
 * (To himself) "I can't believe I'd be protecting their hides this often!"
 * (To Jūgo about Sasuke and Karin)