A Spirit possesses Flora, taken into the manor by Crown Prince Ronan Shaw under the name Xia. To win back Warren, stolen by her fake sister Silvana, she agrees to help Ronan Shaw drive a wedge between him and Warren. Xia needs Ronan Shaw's Essence to survive, affection develops between them. Xia exposes Silvana, reclaims her sister's Inner Core, lets go of Warren, chooses to stay by Ronan Shaw's side, beginning an entangled romance that crosses the boundary between humans and demons.
