After the last failed attempt to track down the Giant Tenseigan, Otsutsuki Toneri had not continued wandering the Ninja World. Instead, he quietly returned to the moon.
For one thing, aside from the instinctive resonance when it was first activated by Hyuga Aoki, the Giant Tenseigan of the Hyuga Clan had shown no further abnormalities.
For another, after fighting Hyuga Kagami, who controlled the Earth Clone Technique, he discovered that many ninja hidden within the Ninja World could threaten him. At the same time, he also discovered many of his own shortcomings.
Based on those two points, after returning to the moon, he silently kept watch over the Ninja World while training himself even more diligently.
As the direct bloodline of Otsutsuki Hamura left behind on the moon, Otsutsuki Toneri could be said to be the person in the current Ninja World whose bloodline was closest to the Otsutsuki Clan.
This could be seen from the attitude of Otsutsuki Urashiki, who had crossed the void from the original timeline, toward Otsutsuki Toneri.
Thus, aided by the advantages of his bloodline and the abundant legacy on the moon, Otsutsuki Toneri's strength had improved rapidly during this period. As he grew older, his body—two or three years older than Naruto and Hinata, nearly sixteen—had almost fully matured, and the growth of his ocular power had entered a period of explosive acceleration.
Besides tempering himself, Otsutsuki Toneri had also continually resonated his soul with the Giant Tenseigan on the moon, improving his compatibility with it.
Since he was the first-level authority holder of this Giant Tenseigan, and the countless Byakugan composing it all belonged to his blood relatives without exception, the soul resonance proceeded smoothly, and his compatibility with the Giant Tenseigan grew by the day.
That was why, while in soul resonance