To pay for his father's medical bills, quiet barista Seo Haneul pours lattes by day and secretly writes soul-stirring songs by night. His hidden life is shattered when he’s discovered by the desperate CEO of a failing K-pop agency and becomes the unlikely secret weapon for a new idol group, Eclipse.
His raw, honest music catapults them to stardom, making them the industry's new miracle rookies. But in the dazzling world of K-pop, enemies hide in plain sight. A malicious scandal fueled by a traitor within his own company and a stalker who sees his every move threaten to destroy not only his career, but the new life he's built for his family and friends.
Now, Haneul must trust his fiercely loyal members and two unlikely allies—a famous YouTuber living next door and the elegant leader of a rival group—to unravel the conspiracy before his star is extinguished for good. Can a boy who only ever wanted to be invisible survive a world where everyone is watching?