Fang Yuanzheng, a top student in the Department of Archeology, was killed in a car accident on the way to see the unearthed Tongtian Divine Cauldron on the Ghost Festival. On a blood-moon night, he traveled back to Fang Yuanzheng, a demon hunter from ancient times with the same name.
By chance, he meets Zhulong and reveals his true form, and obtains several spiritual stones lost by Zhulong, the Divine Cauldron of Heaven and the soul of Bai Qingqing, the Goddess of the Great Wilderness, to reshape his physical body for self-protection. The goddess teaches the Nine Yang Heaven Swallowing Technique. Fang Yuanzheng's pure Yang body has special abilities and becomes a good container for self-cultivation. Pure Yang blood can assist in the practice of elixirs. After becoming a couple with humans, demons, and gods, the two can gain superpowers and increase their strength.
In order to fight for hegemony in the world, Fang Yuanzheng became a perfect match for humans, monsters and gods.
With his pure yang body and pure yang essence and blood, he can get twice the result with half the effort and accelerate his success.
Bai Qingqing, the Goddess of the Great Wilderness, died in physical battle during the chaos in the Three Realms a thousand years ago. In order to mold her physical body, she and Fang Yuanzheng succeeded in dual cultivation, and once again shouldered the great responsibility of suppressing demons and demons in the Great Wilderness.
Bai Moyun is a vixen who has been practicing for thousands of years. She is naughty, smart, good at planning and scheming. She wants to fight for Fang Yuanzheng to use his pure Yang blood to help her practice Tenzin.
Du Muxue is the daughter of Fang Yuanzheng's mentor Du Wenzhong. The two grew up together as childhood sweethearts. Fang Yuanzheng was an orphan picked up by Du Wenzhong on the roadside. His origin is unknown.
Demons are rampant in the Daxuan Dynasty. The imperial master eliminates the demons in Daxuan Kingdom and forms a demon hunting department.
The members of the Monster Hunting Division were selected at all levels, including Hu Yanzu, the son of the richest man in Daxuan Kyoto, Meng Ke, the descendant of the great doctor of Daxuan Dynasty, Yang Liuyin, the daughter of Daxuan general, and the demon catchers Fang Yuanzheng and Du Muxue who caught the great nine-tailed fox demon.
The plot of the story is about conquering demons and going through many hardships, and the male protagonist is surrounded by romantic luck, pursuing marriage and fighting for his spouse.