Arahitogami

Arahitogami (現人神) are a powerful race of souls that exist within the realm of known as Gengetsutani  (三日月月谷; Crescent Moon Valley).

History
Originally Arahitogami were the souls of humans that were ejected from the cycle of rebirth and thrown into the Gengetsutani. Over the centuries the very essence of the souls that were sent to realm became altered by the energy that was produced with it, altering the souls changing them into something different. Upon founding a kingdom within the realm, they began referring to themselves as Arahitogami.

Titles
Kannushi (神主, God Master):

Shitōshin (四闘神, Four War Gods): is a title given to the four most powerful Arahitogami in Gengetsutani, to which serve the Kannushi.

Appearance
Arahitogami in terms of appearance a near indistinguishable from that of humans and souls. However, then can be found due to the unique type of energy that their soul is composed of. While donning a human from, they are able to hide this energy from others.

Celestial Robe (天女の羽衣, Tennyo no hagoromo, "Feathered Robe of the Celestial Maiden"):

Abilities
Monshu (門主, Keeper of the Gate): Is a technique usable by Arahitogami in order to enter the human world as well as travel through the locations of the Gengetsutani.

Rinnekyōkai (輪回境界,Transmigration of Boundaries): An abilities similar to the Konsō used by Shinigami. Through its use, the use is able to send the souls of dead humans to the Gengetsutani, turning them to Arahitogami.

Monmyaku (門脈,Portal Vein):

Tōtōsai (刀々斎, "Sword Purification"):

Genmu (幻夢,Phantasm): Are stated to be sentient entities that are composed of concerted energy that is found within the Gengetsutani. According to the Kannushi, at the moment a Arahitogami is a Genmu is born along side them somewhere within the world. Upon reaching a certain age they are sent out to find it and must make it submit to them. Once done, they Genmu will merge itself with them, giving them access to its power.

Trivia

 * Arahitogami is a Japanese word meaning a kami (or "deity") who is a human being. It first appears in the Kojiki (c. 680), but is assumed to have been used before this book.