Yotsuha, who started working at a transportation company to pay off her husband's debt. She is subjected to power harassment by Nakata, a veteran driver who is also her neighbor. Yotsuha endures it for the sake of her family, but one day she is noticed for her frustration from sexlessness and is forced to have sex. Although her heart refuses, her body doesn't listen and she becomes addicted to the pleasure of a construction worker's dick and ends up having cheating sex...