All is going well for 25 year old young professional Ugata Riichi. He's steadily working his way up the corporate ladder, and he has so many girls that keeping track of them is a job in and of itself and everything else is in the up and up. So he doesn’t think twice when two new women enter his life. His new cute coworker, Isobe Ten, is quiet, stoic and is cold towards Riichi. On the flipside, Ren, a school girl he met on the train under weird circumstances, is overly friendly, loud but has that raw sexual energy. These two women are about to turn Riichi’s life upside down and bring him a whirlwind of problems while emotions explode every which way.