When Asami wakes up, she finds herself in a pitch black room... wearing a collar and tied up with a rope. In front of her is a creepy man who doesn't say a word... Without any understanding of why she was brought here or how she was brought here, her life of being raped around the clock begins! When the limits of sexual acts, which are silently forced without a break for 24 hours, cross the line, what emotions remain? A story that is well-crafted and different from ordinary rape works, and the way she falls into complete captivity are a must-see!