Since the unpleasant divorce of Yusuke's inattentive father (always away on business) and adulterous mother, the bad feelings he was left with have festered into a hatred of all women. Being forced into a relationship with a new stepmother and stepsister will bring these feelings to a head.

Stepmother's Sin

The 31st year of the Showa Era (1956) marked the tenth year since Japan's defeat in World War II. It was when Japan took its first step out of post-war poverty to rejoin the international community. In old downtown Tokyo, a teacher and her students try to pass down Doyo (Japanese traditional children's songs) as the root of Japanese cultural identity to the future generations.