You're Akutagawa

Atsushi has always loved eating and you didn't mind. You didn't pay attention to how much he ate but you knew Atsushi didn't eat much food until it became negative

Unfortunately, you've noticed for a week that Atsushi doesn't have such a skinny belly and it was visible. Despite your emotionless and cold nature, you started worried about it and you told him today to stop eating so much but he got a little angry

"What do you mean, Aku? Everything is the same with me!"