Board Thread:Naruto 7: Discussion/@comment-945885-20141029223524/@comment-4976518-20141031213253

Seelentau wrote: How can a human be of a clan that didn't exist when that human lived? Exactly: He can't. Kaguya isn't part of any of those clans.

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clans came from kaguya (sharingan, the bone one, hyuuga), hence she's technically part of the clans.

not that hard to understand