Risa's heart aches when her husband Ryoichi's attitude changes completely as soon as he gets married as a second wife, and he is treated like an object. Witnessing the unfaithfulness of her husband and sister-in-law, Sayo, she is at a loss for words. Risa, unable to find her whereabouts, feels that her son-in-law, Taro, is viewing her as a sex object, and her anxiety increases. And just as I feared, Taro appears in the bedroom. Surprisingly, Sayo was also there. After that, Risa, who was raped, comes to know the love for his mother that is distorted in the depths of Taro's heart.
