Today's top may become tomorrow's failure during the caste's game! School is difficult enough on its own, but when students are forced to play a ruthless game to determine their social status—and their subsequent treatment—all bets are off. Karino makes a mistake by publicly protecting Azusa, the target, during Eno's frantic public pursuit. Targeted as a failure as king, Karino is quickly dethroned, and once again, class 2-1 must play the caste's game. Then, ten years after their tumultuous high school days, what future prospects have Azusa, Karino, and the others managed to create?