When I Got the Villain Script by Mistake

Two male protagonists + Western fantasy + slow heat Mainly plot Si Yan woke up in an abandoned city, losing his memory of the past and wandering around alone. Until one day, Si Yan saw several people who were completely different from the creatures in the abandoned city. And among them, there is a monster wearing human skin and pretending to be a human. So Si Yan killed the monster, took the identity of the long-dead man, and infiltrated into the human ranks. When Si Yan's fake identity was exposed, everyone believed that he was the murderer. No one believed he was not the one who killed him and he escaped. Si Yan changed his disguise and lived among the crowd with another identity, but a stable life seemed to have nothing to do with him. Abandoned manor, bloody sacrifice, baby cemetery, the temple's mask of hypocrisy was torn in front of Si Yan. As his memory recovered, the gods high in the sky also noticed him. Countless assassinations followed. But these are useless. Even if the god himself comes to an end. In the end, Si Yan reached the top of the world, and those false gods had long been reduced to ashes. *First kill each other and then fall in love. *Western setting, but also touches on Eastern elements.