: A British girl on a mission to return a pendant to a K-pop idol who caused her significant trouble in England.

: A Spanish dancer who travels to Seoul with a broken dream after being betrayed by someone she trusted.

(2018) – The foundation of the main story.

: While deeply rooted in K-pop culture, reviewers from Babelio and StoryGraph note that the book explains the industry well enough for readers who are not fans of the genre.

The plot is built around the concept of the , suggesting that certain people are fated to meet regardless of time or place. The story is told through three main perspectives:

Other key characters include , a cafe worker who becomes close with Cris, and the other members of R E X: Alex , Hyunsoo , and Young . The "De Seúl al cielo" Series