Mamushi

is a shinobi from Sunagakure and a team-mate of Sana and Saya.

Personality
Mamushi appears somewhat deranged, loving the notion of battling and violence. At the same time, he is very submissive before Saya, very intimidated by her to the point where he refers to her as.

Appearance
Mamushi has black hair and wide-open eyes with noticeable veins. He also wears a blue Suna forehead protector in a bandana-style around his mouth.

Abilities
Mamushi seems to favour close and mid-range combat, fighting with long snakes he has hidden in his sleeve. The snakes are venomous, injecting paralysing venom in his opponents.

In Naruto's Footsteps: The Friends' Paths
Mamushi and his team entered the joint Chūnin Exams held by both Sunagakure and Konohagakure two years after the assassination of the Fourth Kazekage. His team passed the first exam and successfully qualified for the second exam held within Sunagakure. On the third day of the second exam, with the goal of having to pass by obtaining an Earth and Heaven scroll from an enemy team, team Saya found Team Asuma. Finding a liking in Sakura Haruno and Ino Yamanaka's appearance, Saya decided to take them on personally, leaving the less-desirable Chōji Akimichi to Mamushi and Sana. As the battle wages, a giant Chōji restrains both him and Sana, but they are soon freed from the Konoha-nin's grasp by Saya who turned her technique onto Chōji after leaving Ino's body.

Ultimately, Ino succeeds in repelling Saya from Chōji's mind, to which the large ninja quickly counters and attacks the Suna team, forcing them to retreat. After regrouping, a hysterical Saya demands to take revenge on Team Asuma for the recent humiliation. Sana then produces a sandstorm to keep enemy ninja at bay while Saya unleashes a swarm of sand puppets to attack them. Sana also masks Mamushi with sand for an additional sneak attack. Despite this effort, Sakura emerges through the sand and defeats the Suna team with a single punch.

Trivia

 * His name is likely a reference to his use of venomous snakes. The mamushi is a species of pit viper.