The reason I got married at this age was because I had that son ... Yukie Mizukami

Yukie, a mother, is in a relationship with Yosuke, a younger man who works under her husband. As they navigate their secret affair, Yukie's daughter Haruka approves of her mother remarrying but disapproves of her dating younger men. Meanwhile, Yukie's husband Taro is oblivious to the situation. This movie features an incestuous and taboo storyline involving a mother-son type relationship between Yukie and Yosuke, with elements of cheating wife, age gap, and forbidden love.