Misuzu divorced because she couldn't stand domestic violence. She is now married to her kind husband, Masao, and is living a happy life. The only uneasiness was that my son-in-law, Satoru, did not get used to me easily. One day, Satoru asks Misuzu for help. And for the first time, she called me "mom". However, the trouble is... For the sake of her son who has forgiven her heart, Misuzu steps forward even though she knows it is dangerous. And what was waiting there...