In a country where thunder and lightning tear apart the night, life and death are intertwined like a black and white chessboard. Xuanting was born with a double destiny: half as the son of thunder, controlling the destruction of light; half as a contractor of the undead, wandering in the silence of death. His soul was torn apart by an ancient contract. During the day, he was the sharp blade of the empire, but at night, he was the guide of the undead. The temptation of power and the loss of self grow intertwined. Xuanting tortures himself every moment when lightning breaks the sky: Is it the loyalty of the living or the call of the dead that is the true meaning of his existence? When Thunder and Ghost embrace each other, the distinction between black and white begins to blur. Only Xuanting can ignite his own glimmer of light in this game of fate.