Yura for two months after marrying a man with a child. - She was happy with her husband, but she was still worried because she couldnt establish a relationship with her son-in-law, Tomoya. - One day, she was asked to help masturbate by Tomoya, who has a too strong lust. - From her joy of being called her mother for the first time, Yuraha helps her son diverge as her mother. - However, Tomoya, who couldnt fit in her one-time ejaculation, continued to see her chance and ask her to help her many times. - At first she couldnt refuse and was swept away, but she eventually asked for help ...