Why am I getting aroused even though my wife's legs are being violated...? Tetsuya, an extreme panty fetishist, lived a blissful married life admiring his wife Minori's shapely thighs clad in pantyhose. One day, he witnesses her having an affair with his subordinate, Umemiya. Tetsuya, who is also a panty fetishist, watches helplessly as Umemiya violates his wife's legs right in front of him. However, the emotion that arises in him is not anger, but an unfamiliar excitement. Awakened to the desire to be cuckolded, Tetsuya asks Umemiya to further defile his wife's legs...