Dazai, an ordinary teenage good boy that's a slight nerd, meets a not-so-good hot-headed teen boy that needs to learn some manners. Well, schools in session. Mr. Kunikida won't have any of Chuuya's temper this year and immediately signs Dazai up to help manage him! Will Dazai be able to tame him? Or will Chuuya quit before even trying?

Everything is normal. Dull and grey, but normal; as far as he can recall. Each day passes the same as the last in Ace's windowless casino where the redhead's kept under lock and key. That all changes with the arrival of a Port Mafia executive, one who will be overseeing the casino's operations, opening new doors into the redhead's own undiscovered nature; most notably, a penchant for violence. When Dazai takes particular interest in Ace's number one employee, things begin to dissolve into chaos. This fic is inspired by the BL Blood Bank. (crossposted from ao3)