Reincarnation in the world of Naruto isn’t exactly a blessing. Imagine leaving a peaceful world, free of major conflicts, only to be thrown into a place where child soldiers are sent off to war. Sometimes, the great villages would even rush the graduation process, forcing kids as young as ten onto the front lines.
But… when you're born with a cheat, everything changes. The world becomes a wonderland after that—unless you’re Senju Nawaki and lose your parents just six years into your life.
But looking at all the templates of every Kage…
Hashirama, Minato, Naruto, Tobirama, the Third Raikage, and so on.
For him to reach 100%, there were basically two methods.
The first? Wait for all the years of each character to pass. Take Minato, for example, who died at the age of 23. All he had to do was wait until he turned 23 to become as strong as Minato, inheriting all his knowledge, skills, and even the state he was in at the moment of death—like the Nine-Tails Chakra.