On a fateful night under a blood-red moon, Kai is born in the humble village of Blackthorn. His birth is far from ordinary; as his mother Lin Mei goes through an agonizing labor, raw and untamed Qi surges through the hut, unsettling even the most experienced villagers. The village elder, Old Man Chen, senses an ill omen hanging over the night, while Kai’s father, Zhao Wei, anxiously awaits outside, unaware of the powerful destiny awaiting his son. They didn't knew Kai had made a pact with demon when he in embryo.