Due to growing up in the mountains by himself Inosuke has trouble interacting with others and only cares about himself most of the time. However, as time goes by, Inosuke becomes more influenced by Tanjiro, and he also starts to think and to use strategies before going head-on with an opponent. Inosuke was raised by boars for most of his life before the Final Selection; it was revealed later that he was born into a family with an abusive father and caring mother. Eventually, Inosuke's mother, Kotoha, and he fled from their family. Afterwards, Inosuke—who was still an infant at the time—and his mother were taken in by Doma into his Eternal Paradise cult. Kotoha loved to sing to Inosuke but would apparently change the song lyrics each time. However, after finding out that Doma eats his worshippers, Kotoha fled with her son. Running aimlessly for a human village, Kotoha eventually ended up at the top of a cliff. Seeing no escape route, Kotoha makes a last ditch effort to save Inosuke by dropping him into the river below the cliff. It was after this that Inosuke was taken in by boars and his mother was devoured by Doma.
Natural Ability
Enhanced sense of touch: After growing up in the mountains, Inosuke developed a sharp sense of touch. He can even feel small vibrations in the air.
Fighting ability
Strength
Flexibility: Inosuke has an extremely strong sense of flexibility, to the point where he is able to dislocate any of the joints in his body by his own will.
