Ordinary high schooler Kim Hangyeol Kim can't shake the feeling that his bad days are always linked to his encounters with Seo Jooyeon, a quiet classmate who hides behind his messy bangs and a trail of eerie rumors. The more their paths cross, the worse Hangyeol's luck seems to get—almost like a jinx. But after glimpsing a hidden side of Jooyeon, Hangyeol finds himself unexpectedly intrigued. Now, every glance they share sends his heart racing, and he starts to wonder if this so-called jinx might actually be something more.