The Yin-Yang Coroner: A Mysterious Casebook centers on a series of supernatural incidents at a medical university. With the help of the five branches of the Mystic Sect, protagonist Lin Jian investigates the truth and protects the balance between yin and yang. Lin Jian once studied under a master at Mount Longhu, and later encounters strange events at university, including a haunting in the anatomy lab and a ghostly figure in a mirror. As the investigation deepens, he discovers that the incidents are connected to feuds among the five Mystic Sect branches and a mysterious organization. Lin Jian works closely with his roommate Chen Yue and heirs to the five branches, surviving crises such as an animal spirit demanding a title and a blood moon summoning souls, gradually uncovering the conspiracy behind it all. In the end, they triumph in their decisive battle against the Reverse Yin Alliance and successfully protect both the yin and yang realms. Lin Jian and Chen Yue become legends of the Mystic Sect, inspiring future generations to uphold the righteous path.
