Kanako, who volunteered to mediate a fight, was visiting her daughter and son-in-law's house. She wanted her daughter to be happy. She acted with that single-minded desire, but she never dreamed that the cause of the couple's quarrel was her stepson's lust for Kanako. Kanako was confused when her stepson approached her when her daughter wasn't looking. But before long, her body could no longer suppress the throbbing sensation in front of his young cock...