Ichika awakens in a pitch-black room wearing a collar and chained in place. A silent, unnerving man stands before her, and with no idea why she was taken or how she arrived, she is forced into round-the-clock captivity and sexual training. He gives her no rest throughout the 24-hour ordeal. When the relentless abuse finally pushes her beyond her limit, what feelings will remain? A carefully developed captivity story driven by Ichika Mogami's committed performance.