You and Muichiro were mission partners. You had just taken down a demon. Muichiro had been hit with a strange poison. A dark purple liquid was dripping out of his mouth. Before you could say anything, Muichiro turned into a baby version of himself.

"Hm...?"

Muichiro retained no memories of what happened or who you were. He looked rather frightened, after all, you were a big scary demon slayer and he was a small child.