
Born into an ordinary family, Mary Saotome (Aoi Morikawa) is thrilled on her first day transferring to Hyakkaou Private Academy. This is no ordinary school—it's a prestigious institution attended by the children of political and business elites, where Mary's dream of living a refined, elegant life is about to begin. Welcomed warmly by her new classmates in Hana Class 1, Mary feels optimistic. However, the class's central figure, Kokoro Aiura (Riko Fukumoto), invites her to participate in something unexpected: gambling. At this academy, academic or athletic achievements mean nothing—gambling prowess reigns supreme. Mary's first taste of gambling in a game called "Speed President" ends in a crushing defeat. Though she initially tries to escape, an encounter with her former classmate, Tsuzura Hanatemari (Shiori Akita), sparks a new resolve. Thus begins Mary Saotome's journey down the path of gambling.
Born into an ordinary family, Mary Saotome (Aoi Morikawa) is thrilled on her first day transferring to Hyakkaou Private Academy. This is no ordinary school—it's a prestigious institution attended by the children of political and business elites, where Mary's dream of living a refined, elegant life is about to begin. Welcomed warmly by her new classmates in Hana Class 1, Mary feels optimistic. However, the class's central figure, Kokoro Aiura (Riko Fukumoto), invites her to participate in something unexpected: gambling. At this academy, academic or athletic achievements mean nothing—gambling prowess reigns supreme. Mary's first taste of gambling in a game called "Speed President" ends in a crushing defeat. Though she initially tries to escape, an encounter with her former classmate, Tsuzura Hanatemari (Shiori Akita), sparks a new resolve. Thus begins Mary Saotome's journey down the path of gambling.
Returning to the gambling den with ¥300,000 borrowed from Tsuzura, who was treated like livestock in class, Mary's eyes gleamed with a completely different intensity than before. "With this money, let's have another round of gambling!" she declared, challenging Kokoro to a rematch. The gambling battle began anew. Kokoro, setting a trap and holding an absolute advantage, seemed untouchable. Yet, despite the overwhelmingly unfavorable situation, Mary kept raising the stakes and pressing on, embodying the quintessential "self-destructive" gambler. However, she had a cunning strategy up her sleeve, and the tide of the match began to shift in an unexpected direction... This was none other than the unmistakable moment of awakening for Mary Saotome, the high school girl gambler who would become a central figure in the series of incidents that would shake Hyakkaou Academy a year later.