After confirming that someone had interfered with his past, Uchiha Shunichi immediately thought of the Dragon Vein from back then.
As the only thing in the world of Naruto that had been confirmed capable of traveling through time, the Dragon Vein was undoubtedly unrivaled.
But Shunichi had already subdued it long ago...
Still, that did not matter. Even if the Dragon Vein had vanished, the source that had caused it to appear had not.
The energy channels within this world were also what the Ōtsutsuki Clan had come here to plunder.
As for other methods, the only thing Shunichi could think of in the short term was using his Regression. But if he directly turned back the time of the entire world, his own state would change accordingly.
Turning back the world's time by too little would do nothing to stop the enemy from returning to the past. But if he turned it back too far, the power he had worked so hard to obtain would disappear.
After all, if the Regression ability affected the entire world, he himself would be affected as well...
So under normal circumstances, Uchiha Shunichi would only turn back his own time.
"Lord Shunichi, this is... the Dragon Vein?" Karin stared blankly at the empty underground space before her.
The Dragon Vein had long since disappeared from this place. There was barely any light around them either. Although the two of them could easily see their surroundings with their vision, this lightless world was still deeply unpleasant.
"The Dragon Vein was really just a bulge formed by underground energy leaking out. Since so much Natural Energy gathered together, it could trigger all sorts of bizarre phenomena," Uchiha Shunichi explained casually.
A thousand years ago, there had likewise been no Dragon Vein. At the time, this