"I just wanted a dating app, not a near-death experience." Minjeong has three problems: her father's crushing debt, her complete lack of a social life, and the fact that she just matched with a girl so gorgeous it's probably a crime. Karina is mysterious, dark-eyed, and suggests they meet in an alley behind a closed-down theater. Minjeong's survival instincts? Nonexistent. She goes anyway. Obviously. One sharp bite later, she wakes up on Karina's lap with no memory of what happened, a weird pain in her neck, and the strange feeling that she's forgetting something important. What she doesn't know: Karina is a vampire. What she also doesn't know: once Karina tastes your blood, she can manipulate your mind. And Karina has no intention of letting her go.

Yu Karina is the university's most feared tutor-strict, untouchable, and never distracted. Kim Minjeong is a bratty literature major with a sharp tongue and a habit of getting under her skin. What starts as tutoring turns into a game of control, obsession, and dangerously private nights. But the real problem? They're both falling-and neither of them are ready to admit it.