The girl Ranying became a member of Yin for revenge. Yin's warriors are all half-human and half-vampire bodies. They drank the blood of the Vampires. They used drugs to suppress the explosion of blood in their bodies. They are not humans, not gods, not demons, and not Vampires. If the Vampires are a race abandoned by God, then they are truly lonely existences abandoned by the world. Not accepted by any clan, they are only accompanied by eternal loneliness and hatred. But there is no turning back when choosing. So the story begins...