Miyuki was invited by her fashion-conscious friend Yukari to go to various places, but this time she was taken to a happening bar. Unable to hide her confusion at the lewd scene that she never encounters in her daily life, she ran away, but was swayed by her friend's strong urging and went back to the happening bar... And to her surprise, she ended up having a relationship with a man she met there. Miyuki heads to the happening bar even though she knows it's wrong. Her husband senses this subtle change in her and feels an indescribable unease...