In Abrahamic traditions, Seth the prophet is the forefather of all humankind. However, this is interesting because the mythology of Susa-no-o (須佐之男) is rather similar to the mythology of Set/Seth of Egypt and the occult. Also, before the Masonic president (and thus Horus-worshiping president) dropped the atomic bombs on innocent Japanese civilians for having the audacity to hold onto an ideology and spirit that did not allow surrender, the Japanese considered themselves descended from the gods (Emperor: Amaterasu, the population Susa-no-o et al. kami). The way the Japanese were treated and fear-mongered and forced to renounce their national spirit is much in the same way the West has been handling Islam. Japan lost the emperor and the Muslim Ummah lost the khilafah (Islamic State). There is even a little known history between the Islamic world and imperial Japan because of such similarities. The Ummah had already lost its political power symbol (khilafah) at that time, and Japan (in big brother, little brother fashion) offered to bring it back.
"On his part, Susa-no-wo decided to leave the residence of the gods and just like many other divine heroes who lived on earth, he became a monster-slayer. One day he saw a huge dragon about to devour a young maid. He came to her rescue right away and killed the dragon. He eventually married her and became the forefather of several large Japanese noble families. Knowing that the dragon had a sword inside his stomach, Susa-no-wo cut it open and claimed it for himself."*
*Savitri Devi, "Shinto -- La via degli dei," Arya, no. 4 (July 1980). Trans. Guido Stucco. Savitri Devi's essay "Shinto -- The Way of the Gods" was written in English in New Delhi in 1979. It was then translated into Italian by Vittorio De Cecco for the Italian-language NS periodical Arya, published in Montreal. The English original of the essay is lost; the text above is Guido Stucco's translation of a translation. Portions of Savitri's "Shinto" may have first appeared in Asit Krishna Mukherji's Eastern Economist, which was published in collaboration with the Japanese from 1938-1941. (Source)
"The rival Izumo clan is descended from Susanoo, and so it can be seen as part of the divine plan that they should have a subordinate role." (Source)