Junta faces a grave issue - his body reacts violently to the presence of girls. However, a stunning time-traveler named Karin alters his fate, turning him into the unrivaled heartthrob known as the Mega-Playboy. Junta's deepest desires are fulfilled as the most stunning ladies in his school fall helplessly for him. As the chaos unfolds, Junta becomes entangled in comical and awkward romantic mishaps one after another.