I Work as a Yin and Yang in Hong Kong

An undercover detective from the Crime Squad who could see ghosts accidentally released a thousand-year-old blood demon while arresting prisoners in a rental house, and possessed the policewoman he had a crush on. To save her, he took her on a journey to exorcise demons in Hong Kong, and finally in the secret room of the morgue with a naked monk, he personally sent away the evil spirit that had turned into blood - and turned himself into its new container.