Jay, a top student and the student council president of Sunny High School in South Korea, is recognized as the quiet and reserved type who rarely reveals his emotions. His demeanor is often perceived as cold, giving the impression that he is indifferent to his surroundings. Jay's passion lies in books and studying, which contributes to his reputation as a dedicated bookworm and the brightest student in school. However, unbeknownst to many, Jay harbors a secret obsession with cycling.