On his first day at a new school, Hee-min falls in love at first sight with a girl named So-young. He happens to find her diary, and he decides to return it to her on Valentine’s. Day. In order to do so, Hee-min sneaks into the school after hours, where he discovers that strange things are happening.
Directors: Song Woon
Studio: JOY N CINEMA
Writers: Ha Kyung-jin, Jeon Seong-soo