After her intense battle with Nagi, Mary is taken by Aoi to a secret place. There, she finds many students, including housepets, as well as Sakura and Nagi. Aoi declares that this organization, called "Full-Bloom," aims to overthrow the student council, which controls the academy through gambling, and its president, Kirari Momobami (Elaiza Ikeda). Aoi, who is gathering money from skilled gamblers to topple the student council, invites Mary to join Full-Bloom. Hesitant, Mary asks for a day to consider her response. Meanwhile, various schemes and motives intertwine within Full-Bloom, and the situation veers in an unexpected direction.