Kana Momonogi's father passed away several years ago, so Kana Momonogi's mother decided to remarry. Although Kana Momonogi did not like her new stepfather, she did not dare tell her mother and tried to be normal with him to keep her mother happy. However, after living in the house for a few days, his stepfather revealed his true face and had bad intentions and bad actions towards his daughter Kana Momonogi. In the end, she was raped by this stepfather and pretended that nothing happened in front of her mother, all because Kana loved her mother and decided to sacrifice everything.