Will you come back again?

The main characters of this story are Park Ji-hoon and his fan, Sora. Sora and Ji-hoon have been best friends since childhood, but Ji-hoon suddenly becomes an idol trainee. Sora, who had been longing for Ji-hoon, also becomes a trainee... Sadly, Ji-hoon tries to forget Sora. Ji-hoon becomes a huge hit on Produce 101, and Sora falls head over heels for Ji-hoon after seeing his performance.