Minjae, a transfer student at Hankuk University's Department of Applied Music, happens to receive help from Taekwondo major Gyuho. Minjae, a work scholarship student, meets Gyuho again while working as a school librarian. Min-jae thinks Kyu-ho is a very strange person, but for some reason he keeps thinking of Kyu-ho. From their first meeting, the two became increasingly intertwined and closer, developing into a romantic relationship.