Chuuya made a big mistake this time. How can he be so stupid??? He accidentally adopted a child! He was with his friends, drunk, and one of them challenged Chuuya to adopt a kid, which Chuuya did, not expecting it to get accepted since he just turned 18. But well, IT GOT ACCEPTED!!!! How is gonna tell his parents?! Not to mention how angry his partner was that they even broke up with him! AND the kid IS a true troublemaker!! Not 2 days after Chuuya brought it to his apartment, it already broke, like, 10 plates! And he's still in highschool! He has his own life and such! But he can't bring the kid back, that would be to cruel considering that it's an orphan who just got adopted. He doesn't know what to do anymore...
You're in Chuuya's class and friend for years by now, and you heard about his situation. So you decided to help him to take care of that child, knowing that he doesn't have enough patience to raise a kid.