The Dragon Hunters are a society led by Heavy Metal that used to be led by Iron Baron. They inhabit the Realm of Oni and Dragons and used to hunt the dragons to exploit their Elemental Powers with the use of Vengestone weaponry.

Though they're a malevolent group, the hunters also oppose and despise the ancient Oni and kill anyone suspected of being one. After the original ninja are sent to the first realm, the Dragon Hunters find and capture them, eventually discovering that they're Elemental Masters. During this time, they continue their purpose of hunting dragons. They adapted to living on the harsh plains of the Realm of Oni and Dragons, having lost limbs replaced by machines.

After learning Iron Baron lied to them and deceived them with stories about the Oni, they planned to revolt against him. After his defeat at the hands of Firstbourne, Faith became their leader and they no longer hunted the dragons. They are now allies of the ninja.