The eldest daughter of the Tanizaki Jewelry Group, Reiko was raised in a life of elegance and wealth. However, due to an incident caused by her father 21 years ago, she is forced into servitude as a sex slave. Through intense suffering and torture, pain gradually transforms into pleasure, and she evolves into a full-blown masochistic heiress. Akari Natsukawa makes her dramatic debut in this intense story! Witness the stunning, heartbreaking transformation of a beautiful young woman as her submissive desires awaken—so powerful and immersive, you'll forget she's acting.