Karin's boyfriend is an older working man. She didn't have the money to buy him a birthday present, so she had to turn to papa-katsu to make some money fast. Nervously waiting at the rendezvous point, her first sugar-daddy turned out to be Izumi, a thirty-something married woman who wanted to be a sugar-mommy to a younger girl. Karin felt guilty about doing this behind her boyfriend's back, but she told herself that it was just dinner.......? But before she knew it, Karin and Izumi were going to a love hotel. An innocent college girl falls into a money-tainted love trap.......