Under the neon lights of the bustling city, there is a strange and supernatural world hidden. Demons and ghosts shuttle through dark corners, the imbalance of yin and yang is lurking in danger, and the gentlemen of yin and yang shoulder the important task of maintaining order.
The protagonist, He Wunian, has studied Feng Shui, Five Elements and Bagua, and now he is alone in the city and has become a well-known Yin-Yang man with his superb skills. Mr. Yin and Yang have different levels, from the first glimpse to the master, each has his own magical power; He Wunian carries magical weapons such as the peach wood sword and the Bagua compass, and holds the yellow talisman drawn by himself, walking between Yin and Yang. In order to become stronger, he spent a lot of money to purchase artifacts in the "Lingyun Pavilion". He also personally collected materials such as lightning strike wood to refine magic weapons, and even gained strength from fierce battles with evil spirits.
From expelling imps to fighting resentful spirits, He Wunian makes every step of his journey to subjugate demons and slay them.