Jihyeon, the top actor in Korea with an angelic face, has a manager who has stayed by his side for seven years: Kwak Eunho. Eunho is the sole exception and "only existence" for Jihyeon, whose personality is as sensitive as his delicate looks.

But Eunho holds one crucial secret: He is secretly and hopelessly in love with Jihyeon, his best friend and his actor.

Just as Eunho's long-term crush starts to fade into numbness, they are offered a spot on the reality show, "Introduce My Manager."

During a program interview, Eunho makes a shocking confession that reveals his hidden feelings:

"I do have someone I like."

Closer than friends, yet less than lovers—what should this undefinable relationship be called?