Yui, who decided to marry a divorced man. Although she was initially troubled by the fact that he had a child, his kindness and warmth led her to decide to spend the rest of her life with him. Having never experienced pregnancy or childbirth, she resolved to become a 'Mom,' and started cohabiting with her shy stepson and husband. 'Tatsuya, even though I'm a new mom, if there's anything you want me to do, please tell me.'... From that day on, Yui began her new life as the 'Mom' of her cruel stepson.
