Hisoka had been taken in by the current leader of the global Jinsei Corporation, Yukitaka and his trusted aide, Daisuke, to serve as a worker for Yukitaka's daughter, Orihime. As the designated heiress, Orihime required Hisoka's public and clandestine assistance. As a result, he had no objections to attending the same school as her and serving as her secret protector at Yukitaka's request. However, little did Hisoka realize that enrolling in Saint Ceral Girls' Academy, Orihime's educational institution, which exclusively accommodated female students, would be a pivotal moment in his life.