Myoken

Myoken, also known as the Amatsumikaboshi, is the force that ruled over the darkness before creation gave way. He is introduced into Naruto Delta Omega as the final "shadow" that Seireitou Hyuga and Haizo Hyuga face to save Existance from destruction.

Origin
The exact details and characterizations of the Amatsu-Mikaboshi are very cloudy or unclear, as he (or it) is rarely if ever mentioned in any of the typically referenced texts of East Asian Mythology. From what can be gleaned and pieced together from ancient Japanese myths, the Mikaboshi is not a physical god in the sense like Amaterasu or Susanoo, but a dark Force that existed before the universe, reigning alone in absolute darkness and control.

Something happened, however, and in one brief instance the iron control of the Dark Force of the Mikaboshi was shattered by the movement of In and Yo, which brought forth the Universe and the active chaos of life and movement, which later became the gods and humanity. 3 beings were created: Kyuubi no Yoko, Saitatsu and Inferno. These three sparked the beginning of creation.

The solidity of the Primordial Darkness had been destroyed, but its residue still lingered on in the hearts of all beings and is allegedly the cause of human passions.

The Mikaboshi originated as an antithesis to the positive forces of life in Shinto, thus its lack of a singular form. It is a force of absolute domination that feeds off of human emotions that, if left unchecked, result in social, emotional, or physical destruction. For instance, a desire for success can lead to greed and lust for power, which is the result of the influence of the Mikaboshi's residue. Love for another can lead to obsession or jealousy, also result of these dark influences. In this respect the Mikaboshi could be thought of as being a Japanese "Satan figure." This is supported by its title as "August Star of Heaven" which is similar to the term "Morningstar" which is used another name for Lucifer in Christianity.

In later centuries, certain creatures that are by nature dark or demonic were said to be connected to the Mikaboshi in a sort of slave relationship to its power. Souls that died with strong attachments and came back to hurt the living were said to have become physical agents to the Mikaboshi's force in a more direct way than simple greed or lust when living, and such creatures as oni (goblins), Ama-no-Jaku, and Demons were also results of certain natural elements falling prey to passions fed by the Mikaboshi's temptations. The ultimate goal, it is said, was to absoultely destroy everything by dissolving it back into chaos, whereby the static, controlling power of the Mikaboshi could return.