Uchiha Kiyoshi planned to wait until his stamina recovered, then go through the Body Forging Technique again.
Since he intended to improve the Body Forging Technique's efficiency by increasing resistance, he naturally had to give it a try. As it happened, Uchiha Kiyoshi had also mastered some useful Ninjutsu. For example, the Hardening Technique was merely a C-rank Ninjutsu, recorded in the basic Earth Release Ninjutsu scroll Orochimaru had given him.
While resting, Uchiha Kiyoshi studied the Hardening Technique scroll as well.
According to the scroll, the Hardening Technique was not a particularly difficult Ninjutsu. It hardened the body and increased defense, but correspondingly reduced the body's flexibility, meaning one's movements would be hindered. This Ninjutsu was C-rank, but its upper limit was extremely high. With continued training, it could even be used in Kage Level battles.
About half an hour later, Uchiha Kiyoshi had mostly recovered his stamina and finished studying the Hardening Technique scroll.
He rose to his feet, removed the weights from his legs, and formed hand seals.
"Hardening Technique."
It was his first time, and he was unfamiliar with it. Uchiha Kiyoshi could only barely cast it, and the hardening across different parts of his body was uneven. Still, this attempt let him understand how the Ninjutsu worked.
He canceled the Hardening Technique and tried again.
"Hardening Technique."
With experience, Uchiha Kiyoshi successfully cast the Hardening Technique this time, and the degree of hardening across his body was basically balanced.
"Sure enough, compared to before, moving is much harder after hardening my body."
Uchiha Kiyoshi tested a few movements and came to that conclusion.
"Next, I'll try it and see whether training after hardening can improve the efficiency."
Taking his stance, Uchiha Kiyoshi began practicing the Body Forging Technique.
With both hands on the ground and