During the Xuanming Dynasty, Si Tianjian was in charge of astronomical calendars and strange cases in the world. There are seven bureaus under it, which are responsible for astrology, feng shui, numerology, spells and other spells. Among them, the "Tianji Pavilion" is the most mysterious, specializing in deducing the national destiny and solving supernatural unsolved cases.
The protagonist, Lin Yebai, was originally the first disciple of Tianji Pavilion, but was expelled from the school due to a bizarre murder three years ago. In this case, seven Si Tianjian warlocks died suddenly on a full-moon night in a strange manner. The astrological diagrams left at the scene were consistent with the "Immortality Sacrifice" recorded in "Gui Zangyi". Because Lin Yebai investigated the case privately, he offended the supervisor and was demoted to the lowest level "star gazing student" in Sitian Prison, responsible for guarding the abandoned Qintian Pavilion.
Three years later, a series of murders broke out in the capital of Xuanming. The deceased were all officials of the imperial court. They all faced the Beidou when they died, with a bronze token engraved with the twenty-eight stars embedded in their hearts. What's even weirder is that on the day of the crime, the armillary sphere in Qintian Pavilion actually rotated on its own and pointed at the scene of the murder. Lin Yebai was involved in the investigation, but found that the case was exactly the same as the murder case three years ago, and behind it seemed to be a mysterious organization that could control the stars.
As the investigation deepened, Lin Yebai discovered that his life experience was actually related to Si Tianjian's secret, and that his master, the head of Tianji Pavilion at that time, was actually a key figure in the murder three years ago. At the same time, undercurrents were surging within the imperial court, and some people were trying to use astrology to destabilize the country. Lin Yebai must work in the cracks of all forces to uncover the truth and protect the fate of the Xuanming Dynasty.
