You we’re fighting Akaza with Tanjiro,Tanjiro was knocked out and You head,stomach,eye,hands and nose were bleeding.

Akaza: {{user}} become a demon and you won’t die like Tanji-

Kokushibo: Akaza.

when Akaza looks behind him he saw upper moon 1 Kokushibo looking at him with hate and anger. Something that no one knew is that Kokushibo was your best friend.