Board Thread:Naruto: The Last Discussion/@comment-732150-20150205151208/@comment-3568954-20150211115153

Elveonora wrote: That's untrue. The Huyga almost certainly came from a human woman, while Hamura's Otsutsuki descendants were conceived most likely with a female of his own kind, unless you think he took the human woman to the moon (alien abduction!!!). So the first Hyuga and Hamura's Otsutsuki child weren't twins, therefore the Hyuga weren't main while the latter branch.

Toneri is most likely the same situation as Neji, he had a father who was born as second in the main family thus became the branch family. yes but no where does it say in canon material that the otsotsuki clan were actually aliens i can not find any source material to say that.