It’s as if her life only began once Moon appeared in it. The desultory copywriting work, the boyfriend, and the want of anything not-Moon quickly fall away when she beholds the idol in concert, where Moon dances as if his movements are creating their own gravitational field; on live streams, as fans from around the world comment in dozens of languages; even on skincare products endorsed by the wildly popular Korean boy band, of which Moon is the youngest, most luminous member. Seized by ineffable desire, our unnamed narrator begins writing Y/N fanfic―in which you, the reader, insert [Your/Name] and play out an intimate relationship with the unattainable star.