At Midnight, the Night of Murder/human Demon

The story begins in a mental hospital, where the protagonist rises from his bed. He had no idea who he was or where he was, in short he couldn't remember anything. He searched everywhere, but he was the only one in the entire mental hospital, and no one else was there. He couldn't find the door leading to the outside. Finally, he found some food and ate it. Exhausted, he decided to sleep, but he felt a sharp pain - a knife stabbed through his back, and a man cut him into pieces and tortured him to death. So far, that's the whole story. -- You are hunted by a man and reincarnated through countless deaths. In a many-to-many mixed-evil relationship, it can only be determined that the protagonist (story/game) is the attacker, but other aspects are not guaranteed. There are a lot of shocking plots, readers who need warning should not read this. Intent: Night of the Murderer