Gennō

Genno was man under the guise of a carpenter who came to Konoha to help a rebuilder in the rebulit plan. In the past, he fought Konohagakure with his homevillage Kagerogakure. When Kagerogakure was wiped out by the another village, Genno was the only one left from his village.

Decades later with his life failing, Genno decided to resurfaced years later to complete his last mission from his village. He began by once again infiltrating Konoha as a carpenter. After successfully placing himself within the village, he stole the blueprints of the fort structure around Konohagakure to refine his left over traps from his last infiltration. Later he was found out by the ANBU. Although based on how skillfully he escaped them by faking his death with a large activation of paper bombs on him, it was more likely part of his plan. With the village ended up under the S-Rank State of Emergency, most of it's ninja were dispatched to the borders of the village, leaving only Shikamaru Nara and the Genin of the village. Shikamaru was then put in charge of invastion Genno's actions with the help of Konoha 11.

Though Genno was first simply interested in destroying the village, he came to appreciate Naruto Uzumaki and the young generation's determination as they managed to find and safely remove his bomb. He then decided to use his trap making to give them an interesting hunt. He amazed the young ninjas by how skillfully he faked his death and successfully planted paper bombs all through the village in a chain-effect. After Sakura Haruno, Hinata Hyuga and Ino Yamanaka discovered that Genno was still alive, Genno decided to move into the final face of his mission. Genno then has his bird drop all the blueprints over the village. While everyone tried to make sense of it all, Genno planted more paper bombs in and on the face of Hokage Rock.

Eventually, Naruto encountered Genno in Hokage Rock and revealed everything, including his plans to blow up the mountain to bury Konohagakure. With his plans finally revealed, he took on the Konoha Genin. He managed to dodge Kiba Inuzuka and Akamaru's attack and used a trick to escape Shino Aburame's insect attack. After a Genjutsu trick, Genno summoned a giant bird. When Ino went into his body, she felt pain so extreme that she left it immediately.

Rock Lee then moved in to subdue Genno, but he managed to matched Lee's Taijutsu. Genno then finally revealed the final face of his plan as he had placed paper bombs in the Third Hokage's face as a trigger for the explosion. After Naruto and Choji Akimichi defeated the bird, Genno decided to finally stop pushing his ailing body and he passed away from injuries that never healed. When Shikamaru explaned to the Hokage what had happened he said that Genno did intend to blow up the village when he first arrived. Then he continued saying that then he met Naruto and decided not to blow up the village and had the birds drop paper bombs to play a treasure hunt again like he did with his own son and that Naruto reminded him of his own son.

Abilities
Despite his advanced age, Genno was still a formidable and famous ninja. His greatest trait was his intelligence, which was great enough to even outsmart an entire squardon of ANBU Black Ops. Like Shikamaru, Genno was adept at perceiving all around him and formulating well thoughout plans several steps ahead of his opponent that could also involve misdirections, as well as quickly altering his plans should the situation change. His intellect best served him as a trap expert, earning him the the nickname The Trap Master.

With Genno's style for traps revolved around infiltration of an enemy's territory and stealthily laying explosives, he proved himself to be a very capable actor. According to Shikamaru, Genno's talent for infiltration, whether hiding in the shadows or blending into the environment and disguising his true objective deserved legendary status.

Genno demonstrated to be very crafty and skilled in battle as well, utilzing several expert level combinations from taijutsu, ninjutsu and genjutsu. He would regularly use his trap expertise to make his opponents more hesitant to approach him by rigging himself with poison gases. In terms of taijutsu, his prowess was able to keep up with Rock Lee and presumably only lost because of his failing health.