The exterior wall looks like a castle in a fairy tale. There is a big clump of hydrangeas in the yard. But after entering, the whole atmosphere is gloomy. There are once locked iron doors and horrible dungeons for visiting with friends or loved ones. But single dogs can only rely on their own doors to have some small pictures to restore the old situation of the prison layer by layer. When you come out to see Yangguan after that, you will feel very sad.