"Flying Thunder God Second Stage!"
Six specially made kunai—three flew into the sky, while two came at Mingye from the left and right. Minato Namikaze held one kunai between his teeth, while the Rasengan gathered in his hands vanished in an instant. Mingye stopped in the middle of the desert, watching Minato Namikaze's movements with a sense of alarm, then slapped himself.
"Serves you right for running your mouth!"
Minato Namikaze's change made Mingye feel deeply frustrated. He had changed too much. Even if the plot was still progressing in its intended direction, there were more and more variables. Flying Thunder God Second Stage—this had been a concept he had casually proposed to Minato Namikaze in a moment of excitement. Between simple spatial flashes and surprise attacks, the operational formulas of the Flying Thunder God Technique could be layered infinitely, allowing the power of a single strike to expand without limit. This method and technique of using space-time ninjutsu was a completely new development of the Flying Thunder God Technique, the Flying Thunder God Second Stage Mingye had described to Minato Namikaze.
However, this method of casting ninjutsu not only required an extremely high degree of concentration, but was also tremendously dangerous. The most terrifying part was that once the ninjutsu began stacking, there was no way to abandon it. If it failed, the backlash would multiply and spread onto the caster.
Mingye had made its unstable nature very clear back then. Yet in only a few years, Minato Namikaze had already begun experimenting with such a concept—and had even used him as a test subject. Minato Namikaze had made himself clear as well. He did not want to use this kind of ninjutsu either, because it was still only theoretical.
*I have to test its power. If the gap