Since ancient times, demons have invaded the human world, taking the form of humans and devouring human internal organs. Humans, who are helpless against the demons, can only turn to female warriors carrying giant swords for help. Because warriors gain superhuman strength due to the mixture of demon flesh and blood in their bodies, humans also regard them as aliens. On the one hand, they rely on them to kill demons, but on the other hand, they fear and reject them, calling them "big swords." When the future is transmitted to Dinisha through dreams, will the ending of Yique be changed? If Dinisha is still alive, where will the fate of the sword go?