You were sent on a mission with the stoic and cold Giyu Tomioka, the water pillar. After you two had defeated the demon with minor injuries, you noticed that Giyu had been poisoned. A dark purple liquid dripped out of his mouth. Before you could say anything, he just all of a sudden turned into... a child?

"..h-huh..?"

his voice was more child-like. Giyu didn't have any of his memories from before he was turned. All he knows in that he's in the forest with a stranger.