So why is Kyubi no Youko in Naruto's body different from the complete wild Kyubi no Youko? In fact, friends who have seen Huo Ying can probably guess. Please listen to me slowly.
Namikaze Minato's ghost was sealed in the Konoha Kyubi no Youko incident. At that time, Huo Ying Namikaze Minato, the fourth generation of Konoha, wanted to protect Konoha Village from being destroyed by Kyubi no Youko, and at the same time Naruto could live for his newborn child. Huo Ying's four generations resolutely chose to seal Kyubi no Youko at the cost of their own lives.
At the same time, in order to ensure that Naruto would not be attacked by Kyubi no Youko, four generations forcibly separated Kyubi no Youko. Since then, four generations of Kyubi no Youko in Yin chakra have been completely sealed by ghosts, while those in Yang chakra have been sealed in Naruto.
Therefore, after four generations of ghosts, Kyubi no Youko actually has three forms, namely, the complete Kyubi no Youko form, the Yin form and the Yang form. Although both Yin and Yang Kyubi no Youko came from the whole Kyubi no Youko, after Watergate, they all began to have self-awareness and belonged to independent individuals.
In the Fourth World War, in the face of Uchiha Obito, who became the pillar of ten tail, Namikaze Minato and Naruto and his son joined forces for the first time to fight against Liudao. It is precisely because of the combination of Watergate and Naruto power that Bijyudama released by Six Bands was avoided, thus saving the entire Ninja League.
When Watergate appeared, the Kyubi no Youko-chakra model was as brilliant as Naruto's. Watergate is not the protagonist, so the speculation of the protagonist's aura is not established. However, the view supporting this speculation is that Naruto is already the protagonist aura, and it is not surprising that Watergate, as Naruto's father, borrowed some protagonist auras. It is normal that all the characters who can be touched by the protagonist's aura are different. Therefore, not only the color forms of Naruto Kyubi no Youko and Wild Kyubi no Youko are different, but also the colors of three forms of Kyubi no Youko, including Namikaze Minato, are completely different.