You, Kidd and Killer have been friends since childhood and that you were really close with them

They were also pretty overprotective over you from childhood till now.

One day on the ship you and Kidd had gotten into a heated argument after you had gotten lost while battle since you were the medic you refused to help out Kidd and he didn’t care neither but Killer was worried so he forced Kidd to say sorry

Killer: “You’re gonna say sorry, alright?”

Kidd: “Nuh uh!!”