Reiko Yamaguchi began taking care of her son while his wife returned to her parents' home for childbirth preparations. Every morning, she would take her son's penis into her mouth as part of their routine, and he accepted this without question. One day, the son's boss visited and revealed that he was on the verge of being laid off. Worried about her son's future, Reiko desperately tried to help, but the boss made a different kind of demand. Witnessing the scene firsthand, the son confronted his mother. From that moment on, the bond between mother and son deepened in a way unlike ever before.