Board Thread:Naruto Discussions/@comment-1018594-20160409062530/@comment-25122992-20160622133024

Besides, I also wondered how Kin/Gin brothers happened to be Hagoromo's descentands - Hagoromo had only Indra and Asura as his children, and these two became predecessors of Uchiha and Senju (+Uzumaki) clans recpectivelly, while there's no evinence of Kin/Gin belonging to any of these clans. They even possess no special traits of them aside from massive chakra reserves and Biju chakra assumilation, yet they were said to have some connection to Hagoromo anyway. In fact, it's the same story with the Kaguya clan - they wield Kaguya's bone weaponising ability (which became known as Shikotsumyaku), yet we don't get to know their actual origins, we aren't even sure if they came either from Hagoromo or from Hamura.