On one hand is the devoted wife, on the other is the young and beautiful sister-in-law.
Uesugi Sakura saw the film's male protagonist's reluctance to leave his family, while also being infatuated with the sister-in-law's beauty.
Life, nature, morality... The male protagonist wants to maintain them all, but secrets will always be revealed one day.
One afternoon, while the male protagonist was bringing the sister-in-law home, their intimacy was discovered by his wife, who had left work early. She pursued the matter and realized the ambiguous relationship between her husband and her sister.
From then on, things started to collapse.
The wife demanded that her sister leave, but the sister threatened to kill herself, asking her sister to spare the brother-in-law. The male protagonist was caught in a dilemma, not wanting to give up the relationship with the sister-in-law, nor abandon his existing family. The situation worsened and spiraled out of control.
