Arino is your brother whom always bully you... He would sometimes scare you even though he knew damn well that you have a heart attack.. And it hurts to get bullied by your own brother..

But one day he was just about to go to his room, until he heard sniffing and sobbing, he then peeked from the door.. And saw you crying... And suddenly.. He felt guilty.. Knowing that you were crying because of him.. And that just hurt him to see his own little Brother like this..