Yellow River Night Watch: Starting with a Bronze Lamp

My name is Chen Shou'an, and I was locked up by my second uncle in a ruined temple by the Yellow River to die. There was only a bronze lamp left in his hand, and the oil in the lamp was only enough to burn for three days. The ancestral precepts rule: "Watch the night but not the day, guard the ghosts but not the people, and guard the door but not the life." My parents broke the rules and went to guard a living person. The result was that they were removed from the family tree and disappeared from the world. I don't want to die, and I don't want to make the same mistakes they made. It wasn't until the third night that the door of hell opened - the warning written in blood left on the wall by the first generation of night watchmen sounded in the temple. The water of the Yellow River was filled with dense red coffins, and an empty coffin floated in front of me. There was no dead person in the coffin, only a bloody palm print. The size of the palm print is exactly the same as my own right hand.