Gurus in the late Goryeo dynasty try to obtain a fabled, holy sword, and humans in 2022 hunt down an alien prisoner that is locked in a human's body. The two parties cross paths when a time-traveling portal opens up.

Because of her looks, Koo Ae Jin is bullied at school and even insulted by strangers. But after school, she leads a secret life: with heavy makeup and hours of photo editing, she lives as Genie, a social media star with 770K followers. While Koo Ae Jin is toeing the line between her true self and Genie, what will happen when a boy from school discovers her secret?

In 1994, on the first day that Yoo Yeul went on air as the new DJ of the popular radio show ‘Music Album,' a college girl Mi-su meets Hyun-woo who happens to drop by the bakery she works at. Like the music streaming from the radio, their frequencies slowly come in sync; even when they're apart, the show brings them together through ebbs and flows of events arising from both pure coincidence and inevitability, until the bitter reality sets in and drives them apart...