During the Yonghui period of the prosperous Tang Dynasty (650-658 AD), it was a turbulent period on the eve of the empress's coming to court. The mysterious organization "Star Gazing Pavilion" secretly monitors hundreds of officials. The master of the pavilion, Si Nan (male protagonist), is responsible for the secrets of the previous dynasty. He forms an iron triangle with A Ye, a foreign female guard with superb martial arts skills, and Mo Jiu, a mute servant who is proficient in mechanism skills. The "Seven Stars in a Row" runs through the entire series - seven seemingly independent strange cases, but they are actually a series of conspiracies by the remnants of the previous dynasty to subvert Li Tang's country. For each case solved, you will receive an astrological bronze talisman. Only by collecting all seven talismans can you unlock the ultimate secret of the Xuanwu Gate Incident.