Niron

Niron is the personal summon of Doujinn Uchiha

Background
Not much is known of the demon's past, all that is known is that he made a contract with Doujinn when he was first learning Sage Mode.

Abilities
Niron is able absorb chakra, then use it for himself. His horns mostly take up the chakra, and empowers his strength. He also posesses the ability to use Freezing Release, such as shooting out beams or punches strong enough to fight a Tailed Beast.