The Yin-Yang Original Sin Tale

The massacre at the blood pool at No. 37 Linjia Lane, the baby-eating Gu Huo Bird case, the police force's string of divine punishment murders, the Rose Girl serial killings, the string of disappearances among women in love, the human-pig case in the abandoned mansion, and the Starving Bride case: are these crimes the work of monsters, or proof of humanity's evil nature?

The seven cases conceal the seven deadly sins. Hell is empty, and the devils walk among us.

Su Xiaoxiao, a promising young Yin-Yang Master, makes a contract with the demon Ye Jun to investigate supernatural mysteries and gather the deadly sins.

Along the way, she faces all kinds of monsters, legendary beasts from the Classic of Mountains and Seas, and a mysterious exorcist master hidden in the deepest reaches of the world.

The forces at play intertwine, piecing together an unusual adventure. But once she gathers all the sins, an even more perilous fate awaits the young Yin-Yang Master.

It all begins with a demon reversing time and returning to the past.