Daijagan

The Daijagan(恐怖目; Literally meaning "Fear Eye") is the moniker of the Shinja Clan; a visible representation of the clan's drive to abolish all fear and doubt from's being. Symbolism aside, the Daijagan is nothing more than a physical trait that appears within blood members of the Clan and matures alongside the physical and mental growth of each individual. Though it houses no unique abilities that would qualify it as a Doujutsu, the Daijagan is often "buffed" with basic, supplementary ninjutsu to give a tactical edge in combat. There are three types of Daijagan in existence within the Shinja.

The first is simply the trait of emerald optics, possessed by every member at the time of birth until the time of their death; at which time the emerald will fade from their eyes and be replaced with dull onyx. The method in which the base emerald optic evolves into the initial phase is shrouded in mystery, since it typically occurs during one's childhood. To some, it is believed that once a Shinja acknowledges his or her Inner Fear, the eye will evolve with exposure to this knowledge. Others hypothesize that, once a Shinja begins training as a shinobi, the body's newfound usage of chakra would physically alter the eye's appearance.

It is a confirmed fact that, once a Shinja gains possession of the clan's Kekkei Tota, the Daijagan will further evolve into what is known as the Akuma Daijagan. Unlike the initial evolution, this change differs from Shinja to Shinja, taking a form that accurately represents their battle against fear and doubt. However unique in appearance, each denotes possession of the Essence Release(真髄遁,Shinzuiton; a combination of Fire, Lightning, and Yin chakra natures, and a higher status within the Clan hierarchy.