Taizō

was an inhabitant of the Land of Ancestors and a close friend of Asura Ōtsutsuki.

Background
Taizō, Asura and their friends often met to play around their village. One time, Taizō initiated a hunt for a giant boar roaming around their village, but the group got surprised by the animal's size and decided to flee. Having climbed up a tree, Taizō urged Asura to defend himself with ninshū, but Asura was unable to do so. After his dog Shiro sacrificed itself, Asura's older brother Indra Ōtsutsuki came to the rescue. Years later, Taizō pleaded Asura to cut down some trees in the forest, apparently to create a shortcut which would benefit the village. However, it came to light that he actually planned to sell the wood to buy medicine for his ill mother, which angered Indra who insisted to punish him for betraying the village. Asura however, bearing Taizō no ill will, freed him from his prison, even though he had to confront his brother directly for this.

After a while, Taizō, who hid in a shack, got informed by his friends Gasuka and Etashi about Hagoromo Ōtsutsuki's decision to send his sons to a long journey. His mother, who got healed by the medicine, urged him to accompany Asura, which he eventually did. Together, they travelled long distances to the village where the God Tree dwelled and discovered with the help of a local named Kanna, that a big number of the villagers succumbed to a mysterious illness. Taizō and Kanna then helped Asura to overwhelm the guard of the God Tree and accompanied him to the cave, in which its remains were in.

Personality
Taizō was a carefree man showing lots of initiative. He loved his mother dearly, going as far as involving his best friend in commiting a crime against his knowledge to heal her, although he regretted this decision afterwards.