Board Thread:Naruto News/@comment-26937472-20151130084303/@comment-734582-20151203101035

DC52 wrote: I don't think it's explicitly stated in the movie that Momoshiki is the one Kaguya fears It actually is stated in the movie. However, Kinshiki's comment (absorb me like i absorbed my guardian) suggests that the sensei is the guardian, and the apprentice is the one being guarded. In turn, if defeated, the apprentice absorbs the sensei and (one way or another) picks a new apprentice. This suggests that Kinshiki and Momoshiki -as people- are not the ones that Kaguya feared, but that -the ones who held their power previously- are who kaguya feared.

Considering that the duo did not return until a full millenium later -and the fact that at least Kinshiki had a predecessor- suggests there were more Otsutsuki around that fought among themselves.