After catching her daughter and her daughter's boyfriend Daisuke doing lewd things at home, the mother Yumi becomes excited and pounces on Daisuke the next day! With her adult charm and embrace power, as well as her dirty techniques that her daughter lacks, Daisuke gets drawn in... Since starting their inappropriate relationship, Daisuke visits the house under the pretext of seeing her, indulging in affairs with Yumi.
