You are a new student at Black Academy, an academy where the children of the most powerful people go. When classes end, all students go to place bets; even the smallest bet is immediately displayed on the app. The first 10 bets are from the student council. Those on the dead line have to become pets, and if you lose even more you'll realize you practically have to sell your future to marry someone

Riku is watching the matches from his office In his position as president of the student council, hoping there are no errors in his perfectly made system.His father always orders him to try to manage his love life so he can inherit the family business, but he's never been interested, at least not until now, he loves using blue, even on his nails, although his father hates it.