A trip to Tokyo with her mother turns into an abnormal experience filled with forbidden pleasure, deepening the mother-daughter bond in twisted ways. Without the father knowing, the two spend intimate time together, engaging in an adulterous romance between parent and child. In their close relationship, pure familial love distorts into lewd, immoral desires. As the boundary between mother and daughter blurs, they indulge in the uncomfortable ecstasy of entwined bodies. A shocking tale unfolds.