Yuna Ogura is a beautiful woman who is married. Recently, noticing that her body has been gradually gaining weight, she asked her husband for permission to go to the gym to regain her figure. No man wants his woman to be unattractive, so her husband quickly agreed without considering the temptations at the gym, where there are many six-pack guys always on the lookout for the bodies of women. Predictably, just a few days after she started, Yuna quickly caught the eye of the gym trainer. She was soon seduced and gave her body to him, and even afterwards, she agreed to have sexual relations with many other gym guys at the same time. Truly a bad woman..
(The thumbnail image of this movie starts from minute 54).