Synopsis：Set against the backdrop of the prosperous Jiuzhou era, the story unfolds during the Empress's birthday celebrations, when mysterious cases frequently occur in the imperial city and a strange realm from the Western Heavens appears. Court lady Xie Yaohuan, together with the young prince He Hong, overcome perilous obstacles, unravel layers of mystery, and solve bizarre riddles to protect the Empress, the imperial city, and the people.