Ever since he had sex with his childhood friend Shinonome, the uptight student council vice president, Yukimura, felt caught in a whirlwind. He found himself invaded by Shinonome in his own bedroom, in the library, everywhere…! Out of desperation, his only defense was to treat Shinonome coldly so as to keep his sanity intact. However, it only pushed Shinonome to go to new extremes…!! Will the headstrong, stubborn vice president finally come to terms with his feelings…!?