Board Thread:Naruto Discussions/@comment-25139119-20140905185119/@comment-25389387-20140906001647

Umishiru wrote: As we saw the tailed beast were freed by the process of her sealing so maybe that happened as well only in a more fused form the first time around and proceed to seal that mass of chakra into Hagoromo. Going on to what you said about that, perhaps the chakra just comes out because of the seal, or perhaps it was kaguya trying to escape the sealing but got sealed anyway into Hagoromo.