Huan Cheng, the strongest supernatural organization in the Lianhuan Huan Sea. Led by the city lord "Luo Hong", it is divided into four guardians: Qinglong Temple - Manlin in the east, White Tiger Pavilion - Xuanying in the west, Xuanwu Palace - Luo Tan in the north, Suzaku Palace - Bitang in the south, and the astrologer of Xingli Palace - Bai Chenyuan. The names of the Dharma Protectors have been passed down from generation to generation and never change. Astrologers have the most special identity, so they use their real names.
The young master of Huan City, the son of the city lord, is named Chengyuan. He belongs to the fox demon clan and lives in Biluo Garden where Baihu Pavilion and Suzaku Palace are located. Protector Bitang is fully responsible for it. Unfortunately, although the young master looks lovely, he is frail and sick. According to the observation of Protector Luo Tan, who knows the most about medicine, he is a bit autistic and has symptoms of depression. He is also afraid of colds and things like stoves. This is really nerve-wracking.