Invited on a hot spring trip, a married woman weary from the lack of affection in her marriage chooses to engage in an affair. Feeling liberated during the journey, she arrives at the inn and, when approached by a man, suddenly becomes overwhelmed with anxiety and bursts into tears. Yet, touched by his tenderness, she gradually surrenders, accepting his kiss. Responding sensitively to his gentle foreplay, she moans aloud as he penetrates her. Riding him in cowgirl position, she writhes in ecstasy. After dinner, the married woman confesses her desires to him, and under his verbal teasing, her pussy grows wet with arousal. Blindfolded and with her hands bound, her sensitivity heightens further, and she pleads, "Please... put it in... I need your cock inside me." Taken doggystyle with deep thrusts from behind, she reaches climax, then rides him once more, swaying her hips toward another peak of pleasure. The next morning, the couple indulges in passionate lovemaking in an outdoor hot spring, their moans echoing by the riverside as their passion spreads.