Des：Yuko (pseudonym), a 28-year-old married woman, has been married for three years now. Due to the trauma of being sexually bullied by a group of male classmates during her student days, she became afraid of men and married her husband while still a virgin. did. Until then, I had never even masturbated, and I had lived my life thinking that sex was something that was only allowed between my girlfriend and my husband. She had lived her life as far away from sex as possible, and had no knowledge of her nightly activities. She always obediently accepted whatever her husband asked of her. She just... She realized after getting married that her husband was not a normal sexual man. Her demands gradually escalated, and before we knew it, it was no longer a normal married life. And now, Yuko, who has been completely trained as a masochist, spends her days being loaned out to other men as a slave. The night before her rental training, she is always locked in a cage naked, and she is ordered to go into heat like a female dog with a lewd fantasy...