Ninja training had clear divisions. Genin primarily built their foundations, focusing on taijutsu, including kunai throwing and techniques like tree climbing and water walking to train chakra control and solidify their basics.
Chunin primarily trained in chakra shape transformation, expanding or compressing the scale of ninjutsu to increase its power, like the Great Fireball Technique Uchiha Mikoto had compressed to two meters in the Death Forest.
Jonin primarily trained in chakra nature transformation, while Quasi-Kage Level went a step further. They needed to cultivate at least one chakra attribute into release chakra, such as Nawaki's Yang Release Chakra.
Although Yang Release chakra and Yang Release Chakra looked similar, they were actually worlds apart—entirely different concepts. Their chakra quality differed by a whole tier.
And chakra was the core of the ninja system. That meant Nawaki was now a Quasi-Kage Level powerhouse. He had at least crossed the most difficult threshold; he only needed to slowly make up for his shortcomings to possess Quasi-Kage Level strength.
It was truly a single step to the heavens!
"Little pervert, does your secret technique have such a hidden effect?"
Her beautiful eyes narrowing slightly, Tsunade reassessed the value of that secret technique.
If it could truly allow someone to cross the thresholds of attribute chakra and release chakra in succession and become a Quasi-Kage Level powerhouse, then changes to one's body were not entirely unacceptable.
"There should be some connection, but the core issue likely lies in the Sage Body Kekkei Genkai inherited by your Senju Clan. Training in that secret technique stimulated Nawaki's Sage Body potential, which in turn raised his Yang Release chakra.
"But don't overthink it. Out of the entire Senju Clan, Nawaki is the only one I've found who meets the cultivation requirements. It may be because he is First