i severely doubt it's Preta, otherwise he wouldn't need that lvl of protection from chakra atks. All that was mentioned pointed more towards OP usage, and even then nothing was confirmed.
Why only mentioning about sasuke way of absorbing chakra but not Kaguya, kaguya also absorbing chakra in the way sasuke did and she done it at will, what technique she is using?
And did you not see him bring them closer ?
It does not require you to have your actual flesh and blood hand.
Just contact in general,in case you haven't noticed the man is rocking a rinnegan i have to even explain its connection to the beast and the gedo your in the wrong forum
"Plot" is not a thing
You just don't pay attention