Deep in the city, an old castle-style villa stands on a hillside hidden by jungle. The villa is dilapidated and the weeds spreading on the roof express dissatisfaction in the form of withering. Even the sparse footsteps in the castle during the day were like thunder. But at night, the castle is brightly lit, and from the outside it can be seen that people are bustling with people. From time to time, the sound of nails scraping against the windows can be heard from inside. But there is only one real human being in the castle, Tian Qingyu.