They said battle was the best way to temper a person, and that was absolutely true.
Before the Fourth Shinobi World War began, both Naruto and Minato had considered combining Kurama Mode and Sage Mode into an entirely new form.
Naruto and Minato's mastery of Kurama Mode could be said to be on the same level.
After all, they were both Perfect Jinchuriki.
But when it came to Sage Mode, even after all these years, Minato's mastery was only slightly better than Jiraiya's.
Being able to enter Sage Mode at any moment during battle was still difficult for Minato.
Thus, because his mastery of Sage Mode was not thorough enough, Minato had spent all these years unable to activate Sage Fox Mode. Even using Sage Mode in battle was no easy task for him.
How should one put it?
Unlike Kurama Mode, which could be used after becoming a Perfect Jinchuriki,
Sage Mode was something that truly depended entirely on fate.
Some people might study it for their entire lives and still be unable to master Sage Mode.
For example, Orochimaru.
As for Naruto, while he might not have possessed some exceptionally outstanding talent in Sage Mode, he was at least far ahead of most people.
This was mainly thanks to the enormous amount of Chakra within Naruto's body.
In that regard, he was very similar to Hashirama Senju.
One had to know that the vast amount of Chakra within Hashirama Senju's body was one of the key reasons he could enter Sage Mode instantly.
Although Naruto and Minato were both Perfect Nine-Tails Jinchuriki and had the Nine-Tails' Chakra empowering them,
Naruto also possessed things that Minato did not.
First, Naruto had inherited half of his mother Kushina Uzumaki's Uzumaki Clan bloodline.
The Uzumaki Clan and the Senju Clan were