The Shinobi World's Greatest Sensor

Hinata Hyuga had the natural gifts to become powerful. Otsutsuki Toneri had taken notice of her, and her talent was beyond question.

But other aspects of her held her back.

Hinata's timid nature and lack of ambition kept her from becoming truly strong.

Of course, if someone told Hinata that becoming the strongest in the Shinobi World would let her date Naruto Uzumaki, she might rise to the challenge overnight. She might not reach the very top, but she would at least be better suited than Sakura Haruno to join that three-person team.

Some people even said Hinata had failed to become strong because she simply hadn't eaten enough.

That wasn't a bad explanation. Uchiha Yi thought it might be part of the reason. Nutrition mattered to ninja, after all.

He was confident he could face Hinata Hyuga from the Fourth Shinobi World War era, too.

But Young Tobirama interested Uchiha Yi most. That old fox Tobirama Senju had so many things he wanted: combat talent, sensory ability, talent for ninjutsu and Water Release, and a knack for every kind of scheme.

Tobirama Senju might not have possessed Hashirama Senju's power, but he was far from weak.

In that era, if Hashirama Senju hadn't existed with his absurd, almost unfair strength, Tobirama Senju would have been the one best suited to lead the Senju Clan.

From the intelligence Uchiha Yi had gathered, Tobirama Senju had even surpassed his father.

Hashirama Senju and Madara Uchiha had simply been too far beyond everyone else.

Fortunately, this was only Young Tobirama. Uchiha Yi didn't dare imagine facing him after he had grown up.

Uchiha Yi glanced at Tsunade beside him, then turned his attention to the Battle Space.

White Zetsu was easy to defeat. Uchiha Yi gained a White Zetsu's worth of Chakra. It was a little disappointing, but even that was no small amount.

If Kakashi from the future found out, he would probably weep with envy.

Defeating Hinata Hyuga took a little effort, but Uchiha Yi managed it. The Battle Space rewarded him with Gentle Step Twin Lion Fists.

It was an advanced secret Taijutsu taught only to the Main Family, and it incorporated Chakra shape transformation.

With Gentle Step Twin Lion Fists and Eight Trigrams Sixty-Four Palms, Uchiha Yi felt he was more like a member of the Hyuga Clan than its own members.

Hyuga Rinka, for instance, had mastered Eight Trigrams Sixty-Four Palms but not Gentle Step Twin Lion Fists. Otherwise, she would have used it already.

After all, Hyuga Rinka was only around ten years old.

What she had accomplished already made her a prodigy of the Hyuga Clan.

The Ninja Academy in this era didn't keep students for six years as it did in Naruto's time.

That thought made Uchiha Yi sigh. However muddleheaded Hiruzen Sarutobi became in his old age, he had protected some children by extending their schooling from four years to six.

Unfortunately, Uchiha Yi didn't have the Byakugan. Otherwise, he could have impersonated a Hyuga Clan member whenever he went out to cause trouble.

With the Byakugan, Eight Trigrams Sixty-Four Palms, and Gentle Step Twin Lion Fists, who would believe him if he said he wasn't from the Hyuga Clan?

For now, Uchiha Yi couldn't use those techniques openly.

Young Tobirama didn't take Uchiha Yi too much effort to defeat. Uchiha Yi guessed this was Tobirama Senju from around the time Hashirama Senju and Madara Uchiha first parted ways.

Strictly speaking, Tobirama Senju at that point was barely an adolescent. He was only eight or nine, though one could call him a youth.

But his age didn't mean he was weak.

He already had the strength of a Chunin. Coupled with Tobirama Senju's cunning, that made him a troublesome opponent. He fought as though determined that even if he died, he would tear a chunk out of Uchiha Yi first—wound him badly enough for the rest of the Senju Clan to finish off that evil Uchiha.

Fortunately, Uchiha Yi didn't fear injury inside the Battle Space. As long as he was willing to take the damage, he could kill Tobirama Senju.

"Ding! Congratulations, Uchiha Yi, on defeating Young Tobirama. You have obtained Tobirama Senju's sensory ability. Would you like to integrate it?"

Integrate it! Uchiha Yi answered silently, unable to contain his excitement.

As expected, Tobirama Senju was a treasure trove. What Uchiha Yi had lacked most when using the Flying Thunder God Technique was sensory ability.

His senses were already quite good, but they weren't sharp enough for him to use effectively while moving at high speed.

That was the main reason he could perform the Flying Thunder God Technique but couldn't apply it in combat.

Given time, Uchiha Yi was confident he could improve his sensory ability even without the Battle Space's help.

But integrating Tobirama Senju's sensory ability was different. Only then did Uchiha Yi realize just how terrifyingly powerful it was.

And this was only Tobirama Senju's sensory ability as a child. Later in life, he could detect the Ten-Tails' Chakra from Konoha.

Some ninja might surpass Tobirama Senju in the precision of their senses.

But when it came to range, Tobirama Senju might well have been the best sensor in the entire Shinobi World.

With Young Tobirama's sensory ability, Uchiha Yi could sense his surroundings for ten kilometers without difficulty. If he only needed to detect large Chakra signatures, his range could increase by at least threefold.

Now Uchiha Yi was almost certain he could use the Flying Thunder God Technique while moving at high speed.

I'm almost unstoppable! Uchiha Yi shouted inwardly.

He didn't mean that being able to use the Flying Thunder God Technique freely made him invincible. Rather, it gave him a real means of protecting himself.

Even if Uchiha Yi couldn't win a fight, he could escape with the Flying Thunder God Technique.

As things stood, all Uchiha Yi needed was time to grow stronger.

Then he could become one of the Shinobi World's true top fighters.

"What's wrong?" Kushina Uzumaki asked, apparently sensing Uchiha Yi's change in mood.

"Something I couldn't figure out before suddenly clicked. I'm close to mastering a ninjutsu," Uchiha Yi said confidently.