Harper Brooks is trapped inside a lethal horror-game school where every student who dies is erased from the real world. Her only lifeline is a forbidden romance system that orders her to seduce Elias, an elegant substitute teacher who can command monsters—and may be the deadliest anomaly in the game. Each kiss unlocks a new survival ability, but every lesson brings harsher rules, grotesque punishments, and hidden messages warning Harper that she will die. As Elias’s guarded fascination turns into dangerous devotion, Harper must decide whether to trust the “ghost teacher” protecting her or uncover the secret behind his existence. To escape, she must clear the final library trial without looking back.