However, an unplanned pregnancy triggers a series of events that promises to shatter the small bubble of happiness Mahiro has made for herself and bring the brewing dissonance in her family to a head.

• 原来她父亲年轻时也曾发生不伦，并因此而造成哥哥去世，这件事后，她对父亲的行为就一直非常反感。没想到她也陷入不伦的感情中。