Board Thread:Naruto Discussions/@comment-5413572-20141206200019/@comment-26112212-20141229112833

I think the Tailed Beasts which were sealed inside Hagoromo might be the cause of Indra obtaining the Sharingan, it might be one of the reason because the Ten-Tails had Rinne Sharingan or may be the red colour Rinnegan on Hagoromo's forehead was passed on to Indra (which is more direct). The descendants of Hamura and their Byakugan was unchanged because it did not have tail beast influence. I'm sure this must be the case because Kaguya's original power must have been Byakugan and she was alien, after consuming the fruit the power might have developed into Rinne Sharingan on her forehead, I like your theory that there was a total eye that developed into Rinne Sharingan but that may not be a case. Whatever that is we don't know as anything happens in Naruto world because Naruto made one eye for Kakashi, so her case may be the same as Kakashi. Also just like her eye powers were divided and transferred into two similarly her body powers must be transferred like that, although I have no idea how her powers are divided I'll just make assumption that All Killing Ash bones was passed on to Hamura, and her Regeneration abilities like developing arms, body parts was passed on to Hagoromo, so that Kaguya clan is descendant of Hamura Otsutsuki and Asura and Senju clan might have those healing powers. I hope that her origins will be explored in more detail in anime; the manga was bit rushed.