This was not Bai Xiaochun's first time hearing about Devil Penitentiary. Early on, the chief of the Bai Clan had threatened to have him thrown in that very prison, which had sparked Bai Xiaochun's curiosity. Afterward, he had asked Zhou Yixing for some information about the place, and had learned that Devil Penitentiary was a prison in Giant Ghost City. It was a very famous place, with all sorts of dangerous prisoners locked up inside. They were all evil villains who, for various reasons, had not been put to death. Instead, their cultivation bases had been sealed, and they had been imprisoned. In any case, they were all the type of people that no one would ever want to run into on the outside....
Furthermore, there was a saying in Giant Ghost City. Death isn't frightening. Get locked up in Devil Penitentiary, and you'll wish you were dead!