It was all thanks to the Remnant Flame Sword.
The principle behind this move was not actually complicated, but it demanded an extremely high level of Chakra control.
Maintaining a massive amount of Chakra at its critical threshold while keeping it stable was nearly as difficult as reaching the heavens for most ninja.
In terms of training difficulty alone, the Remnant Flame Sword would probably rank among the hardest S-rank ninjutsu.
Uchiha Shingen had succeeded only because the fusion of two lifetimes of souls had given him Chakra control far beyond that of ordinary people.
Otherwise, he would probably have needed to raise his Chakra level to Level 6 before he had any chance of mastering this move.
However, the power of the Remnant Flame Sword was undoubtedly worthy of its difficulty.
It could tear through not only flesh and blood, but even Yugito in her Tailed Beast form, and even the defense of the Two-Tails itself.
In terms of armor-piercing ability alone, the Remnant Flame Sword was probably the strongest ninjutsu Uchiha Shingen currently knew.
And the process of training the Remnant Flame Sword had brought another benefit as well.
Uchiha Shingen's gaze fell on the Chakra line of his panel.
He currently had only three attribute points on his panel, but that was already enough to raise his Chakra by one level.
Aside from the constant battles during the Chunin Exams, training the Remnant Flame Sword had also dramatically improved Uchiha Shingen's Chakra control.
That was what had made this possible.
Uchiha Shingen hesitated briefly, then gave up on immediately increasing his Chakra.
Originally, Chakra and the Mangekyō Sharingan had held roughly equal priority in his eyes.
But after yesterday's battle, after seeing that hundred-meter-tall deep-blue giant outside the Uchiha compound, he placed the Mangekyō Sharingan at the