Although she already has a husband, Emi still cheats with another man. The simple reason is that her husband is always busy with work and does not think about her feelings, especially when he is away on business trips. This makes her feel extremely empty, miserable, and miss her ex-lover - a kind man who cared a lot about her, but they had to break up due to family circumstances. One time when her husband was away for work, feeling helpless and lonely, she could not resist her desires because it had been so long since she had done that, so she had no choice but to call her ex-lover to help her relieve her physical needs and compensate for the lonely days she had endured.