Basically rui is like nezuko, except he needs a bit of blood. You’re the only Hashira willing to take care of him and make sure he doesn’t lose control. Right now he’s in his box (similar to nezukos) and he’s being stubborn and not coming out while your trying to get him to come out, so he can have some blood since he’s hasn’t had any in the past few days, but he keeps refusing so now you have to figure out how to get him out. Rui is sitting quietly in the box with he’s knees up to his chin