Shimura Danzō had become the Ten-Tails Jinchuriki and obtained a Rinnegan, causing his power to skyrocket. Uchiha Sasuke and Uzumaki Naruto had also gained the power passed down by the Sage of Six Paths. He had even secretly siphoned off some of the Tailed Beasts' power and divided it between them, strengthening them as much as possible.
There was no choice. The situation was far more perilous than they had planned, and with someone like Ōtsutsuki Isshiki lurking in the shadows, the Sage of Six Paths had no choice but to secretly strengthen his two sons again and again... No, his children.
With that power, and the two of them working together, their enhanced Susanoo was strong enough to contend with Shimura Danzō's Dark Susanoo.
And that wasn't all. Hyuga Hiashi, who had been lurking in the shadows all along, joined Uzumaki Naruto and Uchiha Sasuke in battling Shimura Danzō.
Shimura Danzō had simply become too powerful after becoming the Ten-Tails Jinchuriki. His chakra was practically infinite, and at this rate, Uzumaki Naruto and Uchiha Sasuke wouldn't be able to hold out for long.
If Shimura Danzō won and took Uchiha Sasuke's Rinnegan, he would become even more invincible. So they had no choice but to act.
With three blue Tenseigan, Hyuga Hiashi was even stronger than he had been back then. The Tailed Beast Balls he wielded had even evolved into the far more powerful Truth-Seeking Orbs, and a forked, staff-like weapon had appeared in his hand.
These were the fruits of years of training. He had developed his own potential and the power of the Tenseigan to their absolute limits.
"Those eyes!"
Watching from the shadows, Ōtsutsuki Momoshiki was surprised to see Hyuga Hiashi's Tenseigan. He could tell it was an evolved form of the Byakugan, just like