The story follows Jay (Jo Ja-hyun), a brilliant student and the student body president who is pressured by his family to focus solely on his studies. However, Jay has a hidden talent: he is a naturally gifted cyclist with world-class technique. When he is dragged into joining the school's biking crew, the "Hummingbird Crew," he discovers a world of freedom, street racing, and brotherhood. Over a decade of storytelling, the manhwa evolved from a school drama into a high-stakes professional racing saga involving international conspiracies and the search for the truth behind Jay's uncle's death.