The imperial city of the Great Song Dynasty, the immortal Tai Sui, roaring with the wind, maddening Yaoguang, puppet Kaiyang, the hidden light that no one knows the true face, and the ever-changing insight, jointly run the most mysterious organization of the Song Dynasty, the Big Dipper. Yaohu , Immortals, Lightning Man, West Lake Snake Demon, Fengdu Ghost Walker, and all kinds of abnormalities, conquer them one by one.