The affair that Mahiro has been having with the married Yutaka has been the only escape from her troubled family life caused by her father's own extra-marital affair. Mahiro despises her father for his past infidelity but cannot bring herself to stop Yutaka from being unfaithful to his wife. 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.
