Kaho had been in a long-term relationship with her high school senior and got married, thinking she had grasped happiness. However, after three years, the marital relationship had changed from what it used to be. Her husband's low income, hidden debts, gambling addiction... Kaho wanted to forget all the unpleasant and anxious things with an affair. Driven by instinct, she repeatedly engaged in unprotected sex, with a clingy old man who kept demanding her, not stopping until they had done it ten times a day...
