A married woman's decision... A trip to a hot spring with her lover, under the pretense of a trip with friends. The married women's desire for their partner's body outweighs their regret for their infidelity, and so it's a lustful trip. It's about the hot springs, the food, and a short break between sex. With no restrictions, the entanglement between the man and woman becomes uncontrollable and continues all night... right up until the time they head home... the married women discover the pleasures of adultery.