Survive the Death Flag! (Or Die a Simp)

Our MC was an extreme introvert in his past life — a bookworm who avoided people like the plague, focused only on his studies, and had zero interest in anime, games, or romance. The only time he ever touched anime was when his one and only friend forced him to watch a single episode of some fantasy academy drama — and he hated every second of it.
So when he wakes up in an unfamiliar, lavish room and finds himself in the body of Lucien von Zephyr— a rich, handsome academy student — things seem… pretty okay. That is, until memory floods in and he realizes who Lucien is: the pervy, obsessive side character doomed to die in Episode 7 for going too far with the main heroine!