Help! I'm just an extra yet the Heroines and Villainesses want me!

[Warning! +18 Content Below!]Williams Everett had it all—Oxford PhD, six-figure salary, respect from everyone who knew him. Yet the successful orphan-turned-businessman felt nothing but soul-crushing boredom from his predictable corporate life.His only escape? Novels.After leaving a scathing review on a trashy erotic academy novel, he wakes up inside it as William Cross, a no-name extra with a catastrophic problem.[You are Cursed][Catastrophic Allure: All heroines and villainesses will develop obsessive yandere tendencies toward you]The catch? Sleep with them, gain overpowered abilities. Refuse? Well, they might just kill anyone who gets too close to you, or worse.Now this apathetic man must survive Celestial Heights Academy—where only the world's elite gather and weakness means death—while being hunted by dangerously possessive women who can't decide if they want to keep him or eliminate all competition.In an academy that only accepts the best, can a lethargic extra with no talent survive the heroines and villainesses?Or can they survive him?----If you are looking a novel that is highly based on smut then this novel is not for you!The novel main mostly one MC character development with some smut scenes in-between.