Rika Mariri works part-time at a cafe near her home. One day, while on the job, she's harassed by an aggressive, obsessive customer and nearly faces physical violence. Calmly stepping in to rescue her is her co-worker Nakano. Grateful and drawn to him, she gradually falls under his control, being treated like a sex slave. Unaware that it's all part of a calculated trap, she's pulled into abnormal pleasures. Other part-timers get involved too, creampie after creampie filling her. With each unexpected turn, Rika sinks deeper and deeper into submission.