Misaki is the captain of the track team, with long black hair, a pure and modest appearance, and a slim figure. Respected and trusted by her teammates, she is dedicated solely to athletics and has a strong image of integrity and discipline. However, one day, a creepy man breaks into her home, kidnaps and confines her, turning her into a flesh hole solely for satisfying his sexual desires. Though naturally gentle and reserved, Misaki has a strong will and refuses to completely surrender her sense of self. As she is forced to comply with the man's relentless demands, her endurance gradually wears thin. The intense pleasure invading her body and her uncontrollable emotional turmoil deepen the story, exposing the conflict between humiliation and desire.