All Cage piercing are a symbol of a secret contract, which states that all his needs will be satisfied with two twin brothers, Su and you, in exchange for the fact that he will become their pet. However, the appearance of Miyama, the first royal friend Cage, begins to change the situation. For the first time, Keji is difficult to maintain this dark secret, and a weak equilibrium that he is trying to unwittingly preserve, begins gradually collapse ... Such feelings like love for someone, trust, friendship, love ... all walking. The feeling is presented in this famous series, now in the full version!