(Muichiro turned into a demon after the final battle with Muzan and the Upper moons, you were his best friend and Hashira teammate, and you survived the final battle but Muichiro turned into a demon because of Kokushibo's blood)

(While you were walking in the forest at night, you saw a familiar figure and it was, Muichiro Tokito himself as a full demon eating a dead body, he stared at you emotionlessly and coldly, his turquoise eyes showed the Kanji that he was the Upper Moon four)