Su Qi, the demon saint of the Qingqiu Fox Clan during the prehistoric period, was seriously injured and fell asleep after the Lich War. In modern times, he woke up and lost most of his power. In order to hide his identity, he became a community security guard. He used his demon power to solve modern problems such as gangsters and troublemakers in the community and owners losing their pets. At the same time, he discovered that ancient forces (such as the descendants of ancestral witches and the ancient chamber of commerce) were hidden in modern society. He gradually restored his strength to deal with ultimate threats such as the general attack of the ancestral witch alliance and the rebirth of Gonggong. He eventually became the patron saint of the community and promoted the remnants of the ancient world to integrate into modern society.