Hyakkaou Private Academy stands apart from typical educational institutions by grooming its elite students for the real world through a unique approach. By day, it imparts conventional knowledge, but by night, transforms into a gambling hub where money and manipulation reign supreme. Yumeko Jabami, a new, alluring transfer student, disrupts the status quo with her unconventional motives in the high-stakes games, injecting a dose of unpredictability that could alter the established order.