Recently promoted to manager, Saki spends the night with her subordinate Takeda on a business trip. Takeda, who is young and unable to control his desires, and Saki, whose sexual desires are not fully satisfied on a daily basis, do not take long to become illicit with each other. The subordinate expresses his excitement at the married woman's plump body more than usual by thrusting his hips violently, and the young wife forgets her husband and goes wild during the passionate sex act, which she has not had in a long time. And so a sweet and lustful night passes.