A traumatized young man with physical abnormalities is forced to join a mysterious bureau to confront a disaster spreading across the earth caused by an unknown creature. He embarks on an adventure uncovering mysteries about his life.
Due to government shuffle during the reign of Wu Zetian, the ambitious Di Renjie was relegated to a remote town in the east. Di showed extraordinary talent in case-solving, but as he probed further, more and more secrets were revealed. He embarked on a nationwide journey and solved many mysterious cases. In the end, he returned to Chang'an and reunited with his father. Together, they tackled a crisis that threatened peace and order.