Acing the university entrance exams was supposed to be the hard part. But transferring into the physics department's elite Section A? That's a whole different equation. Y/N thought her biggest problem would be surviving the brutal workload and ignoring the nagging red flags surrounding her boyfriend. That is, until she gets paired up with Sim Jake-the department's undisputed ace. He's the epitome of harmless: a quiet, brilliant bookworm who practically lives in the library. But behind his flawless grades and polite glasses lies a calculation Y/N never saw coming. Jake is harboring a secret. A very dark, very dangerous secret. And the closer Y/N gets to solving the mystery of the campus nerd, the faster she realizes... some secrets are lethal. "He says he's gonna protect her , but who's gonna protect her from him..."