In his enduring struggle to be accepted into the hallowed halls of Tokyo University, Keitaro Urashima takes another stab at the grueling entrance exam. But living in a household of beautiful, young, nubile women can get a bit distracting, especially since Keitaro has fallen head over heels in love with one of them, the fair Naru. Of course, the thirteen-year old Shinobu has fallen in love with Keitaro, and...well, it's always a romp-filled farce for the residents at Hinata House.