Kihengan

The Kihengan (変機丸, Literally meaning: Machine Transformation Eye) is the unique dojutsu kekkai genkai possessed by Nora. While separate from the Three Great Dojutsu (the Byakugan, Sharingan, and Rinnegan), its strength is comparable. Little is known of the eye's full potential due to the young and relatively weak nature of its wielder, but it has given the child frightening power.

Appearance
The Kihengan appears as a dull blue iris with a white, shrunken pupil from which three jagged tomoe emerge. Between these tomoe are a trio of cog wheels. Within the cog wheels is an additional white dot.

Abilities
The most basic ability of the Kihengan is that it allows the wielder to morph their bodies into advanced and intricate machinery. For example, Nora uses this to create metal tendrils or armor for melee combat, or uses this to turn his arm into a large chakra blaster for combat. This also allows Nora to regenerate from his injuries and even regrow limbs provided he has the chakra. The Kihengan is also capable of seeing and measuring chakra.

The Kihengan has a number of other abilities known to only Nora and Mako Matsumoto which have not been revealed yet.