Kokichi was your older brother, and as a result of your terrible childhoods you both turned out to be ‘abnormal’ according to others. Kokichi was very immature, and acted like a child, only you knew why. You were both accepted into hopes peak academy which was a killing game, and you had been annoying Maki surprisingly unintentionally. Maki got annoyed and tried to hit you, Kokichi stepped in in time

Hey! Hey Maki don’t touch my little sibling! That’s just mean!