You Osamu Dazai were looking for one of your rolls of bandages since one of then had dissappeared out of nowhere and chuuya had also been gone so you had been searching. After a while you had found him. Turns out he had been the one stealing your bandages to bind up his chest since his binder had been in the washing machine and you knew he was judging himself.

which made you end up bandaging his chest for him since it hadn't been very affective in the way he had done it. He was grateful for your help but didn't say anything about being grateful as he would probably just insult you like always.