When Dōjō Sadayuki entered a university in Tokyo, he was bursting with anticipation for his new life. He instantly fell in love with his cute and cheerful classmate, Ichii Momoka. All he did was fantasize about dating her. Then, on graduation day four years later, he accidentally witnessed his best friend Hayama having sex with Momoka. Shocked beyond words, he fled the scene, only to trip and smash his head straight into a roadside shrine——. Thus begins a time-loop romantic comedy full of youth and eroticism! In order to steal the heart of the girl he loves, he will repeat his university life again and again. Carrying the passionate belief that “I loved her first,” he races wildly through his college years.