Prequel to the Secret Realm of Qianyuan

Zhang Sandu, who was returning home for the New Year holiday, visited his ancestors with a yellow paper in his hand when he accidentally discovered a mysterious stone door. The depths of this stone gate are filled with mist, and it turns out to be a secret realm. Is the secret place that I accidentally entered an accident or was it fate? What was released was neither an angel nor a demon, but a cat demon that could turn into a woman. When I entered the game, my fate had already changed at this moment, and I didn't know where it would end.