In a futuristic world where vampires have taken control of the planet and humans are raised as mob to serve them in the future. Y/N - 034 is a human who never appreciated anything in his life until he meets Jihyo, the vampire princess. He becomes her slave until she reveals her real self and steals him the only thing he ever owned. Hurted and betrayed, Y/N runs away with the promise of taking back what always belonged to humans.