Takeuchi

Takeuchi is a Demon Slayer from the Demon Slayer Corps present in the Infinity Castle Arc.

Appearance
Takeuchi is a young man with black eyes and short black hair. He wears the standard Demon Slayer Corps uniform.

Personality
Not much is known about Takeuchi, but he is very selfless, offering his life to help Yushiro. He cares about his comrades as he performs medical aid to them.

He believes he is annoying.

History
At a point in his life, Takeuchi became a Demon Slayer, he formed a friendship with Murata.

Infinity Castle Arc
Takeuchi was a Demon Slayer deployed in the Infinity Castle, and through unknown means, survives Muzan's massacre, he meets up with Murata and Yushiro, and find Nakime. Takeuchi and Yushiro manage to sneak up on Nakime, Yushiro controls her, and Takeuchi tells Yushiro to eat him, but this falls on deaf ears as he tells him to shut up.

Takeuchi manages to survive the destruction of the castle.

Sunrise Countdown Arc
Takeuchi finds Murata helping Tanjiro Kamado and informs him that Yushiro is stuck underneath rubble.

The three inject Tanjiro with the serum, saving Tanjiro's life. Takeuchi finds Inosuke Hashibira and rescues him and injects him with the serum.

Takeuchi survives, and appears in Tanjiro's group photo.

Legacy
Takeuchi has a descendant who is friends with Goto's descendant.

Abilities & Powers
Takeuchi presumably has the abilities of the average Demon Slayer.

Yushiro
Yushiro is annoyed by him, but tolerates him enough as to trust him to help the slayers by injecting them with the serum.

Murata
They are friends, they stick around with each other and is shown to be glad that Murata survived the mayhem.

Tanjiro Kamado
They are presumed to be friends as Takeuchi appears worried when tanjiro was incapacitated, and appeared in the group photo.

Trivia

 * Takeuchi thinks that Yushiro crushed Nakime's head because he thought she was annoying.