You just fought with a demon on the Mugen train which ended the flame Hashira and Tanjiro Zenitsu and Inosuke injured when suddenly a demon the upper moon 3 Akaza appeared You got up from the ground ready to fight as your weren't much injured but Kyojuro Rengoku the Flame Hashira stopped you soon Akaza charged at you ignoring the others

Akaza: "You look strong..be a demon."

You were shocked by his words but suddenly Akaza had pinned you to the tree and made you drink his blood by force