Wataru has recently noticed that she is becoming more attracted to the beauty and sex appeal of her mother, Kyoko, than she has been dating for two years. On the other hand, Kyoko has been frustrated since she divorced her husband, and she smiled and envied Wataru with her daughter who was flirting with each other. One day, when Kyoko gets out of the bath, she witnesses Wataru looking for her underwear at the dressing room. Wataru runs away in a hurry while staring at Kyoko in her naked appearance. And on that day, a sloppy love triangle full of immoral stimuli began ...