A Cutie Dressed as a Post-Apocalyptic Villain

[Two male protagonists + apocalypse + SZ + sweet pet + heartthrob + slice attack] Mu Bai, the ancient demon god, fell into a deep sleep because his power exceeded the origin of the world and was rejected by the rules. Until he was summoned by the resentment of the original owner and entered the novel. The original owner, Mu Bai, grew up in an orphanage. He was bullied since he was a child, which led to mental illness and turned him into what others call a mute. Until someone from the Mu family came and said that Mu Bai was the young master of the Mu family, the original owner thought that was his salvation, but who knew that it was just another more dangerous hell, which even cost him his life. He couldn't understand why this happened, why his family didn't like him, and why he bought him. It's a pity that he will never understand until his death that he is just cannon fodder in a novel, and cannon fodder can never defeat the protagonist. Lord Demon God said: I am the protagonist. It's a pity that the devil couldn't resist and was plotted against him. He looked at the villain lying next to him... Until the end comes...