Synopsis：Love is like a sudden car crash. Summer first met Kim Geun at a blazing-hot crosswalk, when he threw himself into the street to save a child on her way to school. That day, he handed her a discarded lyric notebook and said, “Your lyrics are incredible. You’ve got real talent.” With his dazzling smile, Summer’s quietly buried first love began to bloom. Years later, Summer has become a famous singer‑songwriter, but she’s stuck in a creative slump and visits the university Geun now attends. Hiding from fans and the spotlight, she impulsively asks him to shoot her new music video. As they tiptoe along the fragile line between friendship and something more, will Summer finally confess the feelings she has guarded in her heart for all these years?