When I first came to the village I think I spoke of the Ten Assemblies. They are in charge of every activity in the Spirit World regarding judicial acts, and political peace keeping, and economy. There are 10 nations each with a ruling chief deity. The meet in what I mentioned as "the Citadel". The Citadel is the place of meeting for the deities, an exquisite palace made from the rarest and precious stone's in Reikai (many of those materials freshly mined and cut from the many treasure mines owned by my family the House of Kohryu, were in charge of in its construction), made to look like an exquisite amalgam of the 10 cultures to which they originate.

Tuatha dé Dannan (Ireland) - Phantom Queen Morrigan
Celestial Bureaucracy (China)- Jade Emperor Yu Huangdi 玉皇帝
Devas(India)- Deva King Indra
Amatsugami (Japan)-Sun Princess Amaterasu 天照皇大神
Loa (Africa)- Sky King Olorun
Atzlánti (South America)- Makunaima
Aesir (ancient Europea) - King Odin of Asgard
Dodekatheon (ancient Greece)- God King Zeus
Pesedjet (Egypt)-Sun King Ra
Arcs (Hebrew, Christian)-Lord of all Powers, Jesus

The 天津影忍流Amatsukage Shinobi Ryu ninja sect, which trains warriors from these ten nations at their request, was originally created by the Sun Princess, several centuries after the defeat of Lucifer; the Fallen Angel turned Archfiend. The Shijin Ninja, all direct descendants of the Sovereigns of the Quadrants; Xian Wu, Qing Long, Zhu Que, Bai Hu and Huang Long (my ancestor), are chosen from each household if one member possesses a certain attribute: The immense spiritual power of the Sovereign from which they decend. The possessors are trained in the most extreme sessions imaginable (all the ninja operatives are "Hokage" level), and should they master their training and their powers, are called "Chonin" (超忍;Transcendant Ninja). Here's a list of some clans I trained with * Some of these clans are mentioned in popular video games and tv shows in the human world.

Oboro-Ryu (mentioned by Sega)
Arashikage-ryu (used by Hasbro)
Hinogakure-ryu
Ogawa-ryu (think Ninja Blade game)
Hayabusa-ryu (yes there's a Ryu Hayabusa there too, except for a few minor differences between the this one and Tecmo's
Hokuto and Nanto (think Hokuto no Ken as a reference. These Ninja clans use close to the same moves as the characters in Hokuto no Ken)

wow.... this is actually interesting to see. All I can say is my clan is a band of Kitsune and recently added 'forest dragons' The kitsune follow Inari and these Dragons follow Gaia. The original Kitsune clan has roots in Ireland, but have a distinct link to Japanese customs.

Wow. This is really interesting. I never knew that their are Ninja clans in the spirit world.

Given my faith, if I fall under any of them then it would be "Arcs". As for Shijin households it seems I married into Zhu Que (Suzaku).

And in my case i'm a born member of the house of Huang Long (Kohryu), into the Kusanagi family, one of the three head clans of the Amatsukage warrior sect (Yata, Kusanagi, Yasakani). my father, Kusanagi Takehoshi, was head of the family until i inherited. but am married into the house of Qing Long, Bai Hu, Zhu Que, Xian Wu, and Kirin. I am also married into the Feng Huang, but that marriage pact happened by accident. Amaterasu is my matron kami, but she and i agree that Christ is my truest master.