His mother, Aoi, is masturbating sadly. When Kazuya witnesses this, he feels a strong emotion well up inside him. He wants to comfort his mother. And he wants to rub those sexy breasts. Aoi is confused when her son suddenly starts to gobble down her breasts. However, her frustrated body reacts sensitively, and she feels affection for Kazuya, who buries his face in her H-cup breasts that her husband won't even touch. If Kazuya likes her breasts that much, Aoi decides to accept him in all kinds of breast play.