Rika's chubby body has recently started to bug her. When a diet supplement trial program is announced at the beauty and cosmetics company she works at, she decides to take that as an opportunity to change herself. However, she soon finds out that the handsome president of her company is a sadist and takes things to the extreme only with her. Her soft and chubby body had never been attractive to anyone, but now she has two handsome men groping her and trying to open her up! This is the thrilling sucSEX story of one innocent girl finding herself!