After watching this work starring Mary Tachibana, the stepmother-stepson setting delivers a powerful impact. Mary's character, a stepmother, harbors faint romantic feelings for her reclusive son who resembles her late husband, leading to a private hot spring trip. In the bath play, Mary's alluring body stands out, and the switch from hesitation to acceptance of the son's advances is thrilling. During the intimate scenes, her subtle shifts between a woman's and a mother's expressions and gaze flow showcase her acting soul, and the final missionary position creampie finish with a lover-like connection is emotionally moving. On the other hand, some viewers question the realism of the setup, feeling that the flow to allowing penetration didn't fully excite, but overall, it's a passionate work that vividly portrays the forbidden bond and pleasure of a night in Joshu.