カーストヘヴン

At one high school a hidden deck decides everything: the card a student finds on campus fixes their rank, from King and Queen down to the lowest tiers. Azusa has ruled his class as King until a new round of the game, when his classmate Karino takes the King card and casts Azusa as the Target, the bottom of the order. Bullied by the very people he used to mistreat and pressured to submit to Karino, Azusa refuses to break and keeps fighting to reclaim his place.