I woke up inside a novel as a side villain with a... yandere system?

After dying on Earth, he wakes up and finds himself in the body of Kory Kilefair, a third-rate side villain from a hero-themed novel. His fate in the novel, dying helplessly to the main character, serving as fodder that was forgotten after a single chapter. However, the novel wasn't the same as reality because Kory's existence was more than just a side villain. Somehow, some way, that man had multiple yanderes obsessed with him and when he died, they threatened the destruction of the universe itself. So desperate to save itself from destruction, the universe brought Kory back in time with the Yandere System in hopes of changing the outcome of the future. "But wait... I'm not Kory! I'm just some dude from Earth who died after finding out that my long-time girlfriend was actually a distant cousin of mine!" —————————— Tags: Yandere, Netori (NO NETORARE), R18+, Harem, Obsessive Female Leads, Side Villain, System, Murder, Ruthless MC (Doesn't Spare His Enemies), Weakest to Strongest, Isekai