Long ago in the ancient Warring States period, there were three Clan's who held the Powers of the Dragons inside of them, the first of these Clan's was the Haizen Clan, a Clan who still exists today, and One that was Revered and Respected for the Ferocity, Skill, and Raw Physical Power, so much so that even the Uchiha Clan once feared them. The second and third were more dificult to define, both were offshoots of the Haizen Clan, but they were born from Two sisters who married into the Senju and Uchiha Clan's Respectively.

The Raiga and Ryu Clan's Dragon Power and their Conflicting Philosophies of the Will of Fire and Curse of Hatred put them at odds more than the Uchiha and Senju Clan's. Finally the Two clans Rivalry reached a Breaking point and the Uchiha, Senju and Haizen Clan's washed their Hands of the Raiga and Ryu Clan's. With nothing but themselves to back up their own threats the two Rival Clan's tore eadh other apart until only two families from each clan remained after the end of the Second Great Ninja War. The families knew that while their Conflict was inevitable, it would have to have a clear Victor, so both sides Agreed to Inter-marry with other prominent Clan's with powerful Traits or Kekkei Genkai, and that when the Conflict finally Re-emerged Their Strongest descendants would be able to decide A Victor.

The Raiga, were the Descendants of the Haizen and Uchiha Clan's, and by extension of Uchiha Ancestry The Otsutsuki Clan. The Clan's Male Line Gained the Sharingan which was a highly desirable Visual Kekkei Genkai to have. While the Female Line gained their Skill in Kenjutsu and proficiency with Fire-Style Ninjutsu. After the end of the Second Great Ninja War, they Went in a more diverse Direction, they Married into the Kaguya, Hozūki, and Yuki Clan's of the Land of Water, and the Uzumaki, Yamanaka and Nara Clan's of the Land of Fire. Through their Descendants in the Yuki Clan they would gain the Ice-Style, through the Hozūki Clan descendants, they gained the Hydrifcation and Water Gun Technique's, and through the Kaguya Clan they Gained the Shikotsumyaku. By Marrying into the Uzumaki Clan they Gainee their Rivals Powerful Life Forces, Longevity and High Chakra Reserves, while they gained powerful sensory types through the Yamanaka Clan and Learned the Shadow Paralysis Jutsu from the Nara Clan.

The Ryū Clan were descendants of the Haizen and Senju Clan's, and like their Rivals in the Raiga Clan are distantly related to the Otsutsuki clan theough their Senju Ancestry. The Ryū Clan First Inter-married into the Hyūga, Aburame and Sarutobi Clan's of the Land of Fire and the Fuma Clan of the Land of Rice Fields, Chinoike Clan of the Land of Steam, and the Hoki Clan of the Land of Wind and Land of Fire. Through their Descendants in the Hyūga Clan they gained the Byakugan, which like the Sharingan was a highly Desirable Visual Kekkei Genkai, through their Descendants in the Fuma Clan they gained their signature and secret jutsu, and throuth the Chinoike Clan they gained the Ketsuryūgan. Through their Descendants in the Hoki Clan they gained Kotarõ.