In this chapter, we learn that Caius's powers are limited because he is a demon from the "general" or "above" category. He is unable to enter the human realm because of the "sin" of the seven "demon kings," a stigma that prevents demons from challenging the king. Caius explains that if a demon challenges the king, it can take away the stigma and become his or her new king. This is why Caius reacted so violently when he saw his sister-in-law eat so much.