Why did Kishi take so much care to have Sasuke and Itachi present during the Kyuubi incident? Prior to this, we never even heard of any significance of the two brothers as it related to the Kyuubi incident. Sasuke and Itachi's role in the manga revolved around the Uchiha massacre, which is another mystery.
Yet, since Kushina's story, we have seen Sasuke as a baby twice, once with his mother, once with Itachi. Moreover, Naruto and Sasuke are shown side by side as babies on the front cover.
I have a theory. So many people on this site have wondered where Yondaime sealed Kyuubi's evil chakara. The consensus is that it was probably in the Death God.
But here is what i think. I think that the Death God seal was used to deal with Madara. Minato tried to seal Madara/Tobi into the death god but for some reason wasnt able to do it completely.
So Madara escapes, and the Kyuubi is left out in the open without anyone controlling it.
It is upto Minato to seal the Kyuubi.
But he knows he can't seal it within himself. He knows only an Uzumaki can control the Kyuubi.
He decides to seal the Kyuubi into Naruto.
But of course naruto is an infant and the entire Kyuubi Chakara was too much for such a small body to handle. Naruto's special Chakara hadnt developed yet.
Minato decides to split it into two.
Ying and Yang.
He puts one half into Naruto.
But what to do wit the other half?
The only other kekkai genkai able to controll the Kyuubi was Sharingan.
Itachi offers Sasuke as a host.
Saskue turns out to be the closest reincarnation of the sage of six path's evil son
He contains the chakara immediatly
Naruto turns out to be the closest reincarnatoin of the sage of six path's good son
He also contains the Chakara immediatly.
But given Sharingan's old history with Kyuubi, Sasuke's sealing is kept secret.
Only Minato, Itachi, and Madara know the truth.
What naruto saw in Sasuke after the Danzo fight was Kyuubi Chakara.
What do u guys think?