After Guarding the Murderous Grave for Ten Years, I Discovered That I Was the Real Murderer.

In Lu Shou's memory, his childhood was about his grandfather and that lonely ancient tomb. When he was very young, his parents went into the mountains to collect herbs on a rainy night and never came back. He was isolated from the children in the village since he was a child, and his only playmate was his grandfather. Grandpa didn't teach him any "magic", but just asked him to repeat three rules day after day: burn paper during the Qingming Festival, add soil at fifteen, and seal the tomb at ten years...