Modern detective Shen Yan accidentally traveled to Chang'an of the Tang Dynasty and was involved in a bizarre murder case when he woke up. A mutilated fish charm, a page of account books with the date cut off, and a wooden sign with "the next three days" pulled him into the Dali Temple, Xuanjia Camp, Neiku and the East Palace. What's even more dangerous is that all the evidence is quietly pointing to him; is he investigating a murder case or an imperial power layout that has already begun? Is his time travel a part of the changing situation?
