Demon Cells(鬼の細胞Oni no Saibō), also known as Ogre Cells or Demon Genes, are mysterious cells found within the Orient that are under the study of Kokonoe. After the Phenomena Weapon Dispossession Operation, a mortally wounded, and human, Iron Tager was taken to Kokonoe's lab and injected with the cells in order to preserve his life and provide adequate data for Kokonoe's research. The cells themselves are withdrawn from Demons.