"This treasure tool was brought to the Ninja World by Otsutsuki Kaguya. In other words, the Otsutsuki Clan had already mastered technology of this level thousands of years ago..."
As that thought surfaced, Hyuga Kagami quickly suppressed the faint pride he had felt after crushing Otsutsuki Urashiki, who was also a Kekkei Mōra.
A glimpse of one spot revealed the whole picture.
From the treasure tool Plow before him, which had opened a spacetime tunnel, Hyuga Kagami could infer that the Otsutsuki Clan not only possessed the ability for interstellar travel and colonization, but had also conducted extremely profound research into such unfathomable realms as time and space.
By comparison, the Ninja World was nothing more than a child who had just begun to walk in this regard.
"I can't underestimate the Otsutsuki Clan just because of one Urashiki."
Hyuga Kagami silently warned himself.
At that moment, the treasure tool Plow said, "You may choose any point in time here and travel back to the past. However, any change you make to the past may have unpredictable effects on the future. Please proceed with utmost caution."
Hyuga Kagami nodded lightly.
He had always been cautious when dealing with unfamiliar things he did not understand. Even without the treasure tool's warning, he would not act recklessly when it came to something like time travel.
That was the basic quality of a researcher.
"Hmm?!"
Suddenly, Hyuga Kagami noticed an image within the streams of light surrounding the spacetime tunnel—and the person in that image was none other than himself!
With a thought, he casually grabbed the little pink turtle, Plow, and stepped into the flowing light.
The world spun around him, and the scenery abruptly changed. The journey through time was completed in an instant.
As a Kekkei Mōra, Hyuga Kagami was