Struggling musician Ju Yeong is offered a large sum of money for a very strange gig.

600 years ago, Yuen fell in love with a disgraced servant girl named Yu Jeong. In the present, Yuen has trouble coming to grips with the the fact that he's in the year 2021.

Yu Jeong and Yeun try find out more about his past, but Yeun is fascinated with the modern world.

Yeun couldn't save Yu Jeong back in Joseon, so he tries to help her succeed in the present.

Yu-jeong struggles with stage fright before her audition.

Lee Won's creepy behavior threatens Yu-jeong's career and her relationship with Yeun.