Abandoned by the Gods, I Had No Choice but to Start the Age of Forbidden Gods

(Fantasy upgrade + decisive killing + rule ghost + collision between modern and ancient times) People in the world only know that there are gods three feet above the head, but they don't know that there are ghosts three feet below the ground... Ye An was abandoned by the gods and only had three days left to live. He walked through a door and stepped into a world where gods and ghosts coexist. There is a supernatural place where there are regular killings, and there are also intrigues and conflicts between forces. However, when everyone was struggling to survive within the rules, Ye An discovered that there were some rules that he did not need to follow.