Martial Arts Academy poor student Xu Mu accidentally hatches a dragon egg, getting the arrogant, gluttonous baby dragon Yin Jiuer who claims to be the Lord of Space-Time. While the man and dragon are in utter chaos, the academy is suddenly invaded by the Demon Lord. Xu Mu loses his life on the spot to protect the demon woman Hong Xiao. Yin Jiuer awakens the power of the Nine Yin Candle Dragon, tearing apart space-time and dragging everyone into the ancient era of demon wars. Stranded in ancient times, Xu Mu fights side by side with Hong Xiao and Jiang Ning to protect human civilians, unaware that Shen Xingchen has already been abducted by the Demon Lord, and the gears of fate quietly turn.