Tsuzura Hanatemari possessed no aptitude for games of chance, a deficiency that placed her squarely at the bottom of the academy's social hierarchy. This precarious position shifted, however, with the arrival of a long-lost acquaintance.

Sakura Miharutaki, a dedicated member of the Student Council, finds herself in opposition to a student known for reckless wagering and disruptive behavior. Mary’s carefully laid plan unravels when an unforeseen visitor arrives.

With a future as a pampered pet hanging in the balance, Mary desperately needs to find a way to earn some money. A test of loyalty looms when she and her companions agree to attend a gathering centered around romantic pairings.

A shadow of betrayal hangs over Mary, making trust a fragile thing among her companions. Elsewhere, the opposing team is consumed by a dispute, debating whether to re-enter the fray.

Aoi seeks to draw Mary into the fold of his Full-Bloom community. Meanwhile, Mikura and Sakura conspire to challenge Mary, devising a scheme centered around a high-stakes gambling game.

Sakura and Mary stood poised on the precipice of the final game. A desperate plea formed in Mary's heart, and she turned to her companions, willing to employ any strategy, however unorthodox, to secure victory.