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Hanju is an ordinary college student during the day, and an eTuber who runs a cover song account on social media while hiding her face at night. One day, famous idol Levi follows Flea. However, Hanju unexpectedly runs into Levi in a university classroom.
Do-guk discovers calluses on Han-ju’s fingers. Do-guk, who thought it was caused by a guitar, suspects that Han-ju may be Flea. Hanju thinks of a way to escape suspicion, but unintentionally the two begin to grow closer.
Do-guk has begun full-fledged album work. For some reason, I keep thinking about that week. Meanwhile, Han-joo passes the interview at a large company, but at the same time, he is offered an intern position in a music entertainment program by producer Go Hee-jung.
Hanju is in charge of conducting Do-guk's preliminary interview. Do-guk, who becomes convinced that Han-ju is a fling, begins to reveal his feelings to Han-ju in earnest. Hanju was also gradually seeping into Do-guk... Hanju listens to Do-guk's song and somehow finds comfort.
Hanju realizes that Do-guk knows his identity. I feel angry and disappointed at the thought that they tried to use me to work on the song. However, Hanju soon learns the identity of ‘Dorai’, an anonymous fan who has warmly supported her all this time.
Hanju and Do-guk resolve their misunderstanding and decide to work on an album together. The two gradually begin to become closer as they share opinions about music. Meanwhile, Do-guk's ex-girlfriend Se-ah, who coveted Hanju's song, intentionally puts Flea in danger.
In the end, Do-guk ended up releasing a collaboration song with Se-A instead of Hanju. In return, Se-Ah defends Flea, and Hanju is freed from the misunderstanding. Hanju completes the last track of the album with feelings of regret and gratitude towards Do-guk.
Hanju decided to go out into the world for the sake of the country. However, she ended up in a big fight with her father, who was against her becoming a singer. Han-ju does not want Do-guk to sacrifice himself for him, and eventually decides to take a step away from him.
