In the Royale School, Ayamoji Kokuei was being targeted by a yakuza's son, Shirogane Michihiko (real name: Kintarou). Ayamoji began to skip lessons and repeat grades to avoid running into Shirogane. When they meet again six years later, Ayamoji drugs Shirogane and they get intimate. Ayamoji left after that and reappeared five years later. Will the two lovebirds finally be together?