Sex Is Not By Size: Na-na, the only daughter of a chaebol is heartbroken because of her husband's affair. Even if she already caught his husband cheating, someone interrupts so she couldn't enter the scene. That person is no other than Jin,yeong, the husband of the woman with the same situation as hers. The two try to heal each others' wounds and became fond of each other. Nana falls in love with Jin-yeong who has a smaller tool than her husband, but is more considerate...