Jung Taeyoon, a member of a popular K-pop idol group, is stepping into the world of acting after six years since his debut. While he's adored by fans everywhere, Taeyoon has a secret: he's the ultimate fanboy of another actor, Yoo Eunjae. Taeyoon's room is practically a shrine to Eunjae, filled with his merchandise. Finally, at the first table-read for a new movie he's set to star in, Taeyoon's dream comes true as he gets the chance to meet Eunjae in person for the very first time...