I Will Prevent the Corruption of the Nerdy Second Lead

<What happened in St. John’s College> She transmigrated into a novel that is only 1% romance. It was a 19+, mature, smut novel. However, she never cared that the novel she transmigrated into was considered trash by everyone else. "Thank you very much for reincarnating me as an extra who doesn't even appear in the original story!' Though, she had no plans of interacting with any of the main characters! After graduating, she plans to become a daring author and live a carefree life, free of stress! Fate, on the other hand, seems to have an entirely different plan... "It's here, the place where tragedy will befall in the near future..." Due to some mix up, Genevieve, who planned to enrol in Four Gates Academy, ended up enrolling in Saint John's College. Whether this is fortunate or not,...