The moment Ichika woke up, she found herself in a pitch-black room... and was collared and chained. In front of her stood a creepy man who never spoke... Without understanding why she was there or how she got there, her life of constant violation and training began! When the limit of 24/7 silent coercion of sexual acts was crossed, what emotions remained? This is a story that sets itself apart from clichéd rape works, featuring a meticulously crafted narrative and a performance infused with Ichika's soul—a must-see!