<Club Aiken> A mysterious establishment where women burdened with massive debt can erase their obligations by offering their anuses to members. The operation was run by Yuu Kawakami, head of the Kawakami Group—though her true identity remained unknown to all. One day, it's discovered that Yuu secretly used funds from her husband to finance Club Aiken, and as punishment, she is sentenced to have her own anus auctioned off. Shocked and helpless, she faces an eerie and devastating turn of events. A disturbing and intense experience awaits.