“View feedback…”
First, Yuu checked what ROOT had made of it.
> [Feedback: ROOT agents’ analysis: Finally!
Uchiha Yuu is taking his training seriously.
That’s what an Uchiha is supposed to be — no self‑respecting clansman skips practice like that.]
Yuu stared at the message, deadpan.
So even not training counts against me?
Since unlocking the journal system, he’d poured all his focus into collecting rewards, leaving his regular cultivation on the back burner — enough that the elders had scolded him more than once.
Both he and Obito were seen as oddballs.
While other Uchiha spent every waking moment honing their power to raise the clan’s standing, the brothers spent theirs building bonds and helping others.
Yuu let out a dry chuckle at being called “strange.”
He sent Obito off to bed, then pulled up the rest of his feedback.
“Let’s see the rest.”
> [Record: Met Minato Namikaze.
Feedback: Obtained a faint trace of Senju clan bloodline.]
“A trace of Senju blood… so those online theories were right.
The Senju didn’t vanish — they wove themselves into Konoha.
The Senju are Konoha, and Konoha is the Senju.”
A gentle warmth spread through his chest as the bloodline settled — faint, but unmistakable.
> [Record: Confirmed Senju clan lineage.]
> [Ding!
Record saved.
Feedback received.
3 entries remaining.]
He hoped this entry would yield more Senju blood — instead, the system gave him a clue: Common trait: broad forehead.
> [Record: Meeting Minato Namikaze today was genuinely enjoyable.]
> [Ding!
Record saved.
Feedback received.
2 entries remaining.]
No luck — no more bloodline rewards.
> [Feedback: Minato is also curious about you.
He believes Obito’s outlook is shaped heavily by your influence.]
“…Why does everyone — my clan, ROOT, now the Fourth — think I’m shaping Obito?
I’m barely doing anything!”
He thought it through.
It seems I only get more of their bloodline when they show something truly unique, just like with Obito.
That broad forehead is easy enough to spot… Minato isn’t the only one with that trait, surely?
Madara had lusted after Hashirama’s flesh and blood — for its Wood Release, its Senju vitality, and because the Rinnegan required Senju chakra to awaken.
Yuu didn’t know if it needed Hashirama’s exact Wood‑Release‑touched bloodline, or if enough regular Senju lineage would do.
Unlocking the Rinnegan was the ultimate peak of Uchiha power.
Canon hinted at two paths:
1.
An Indra reincarnate must receive the cells or chakra of an Asura reincarnate — a slow process that can’t be achieved through eye evolution alone.
2.
Channeling Sage energy could also bring it about.
He had no way to follow the first path — so he pinned his hopes on the second.
He made one last entry:
> [Record: The Rinnegan requires Senju lineage to awaken.]
> [Ding!
Record saved.
Feedback received.
View now?
1 entry remaining.]
“View it.” He held his breath.
> [Feedback: Requires Senju lineage attuned to natural energy, or another bloodline with equivalent properties, refined into a unique catalyst energy.]
“…What?”
This only raised more questions.
It wasn’t about Wood Release — it was about a lineage that could draw in natural energy.
If that was true, what about Nagato?
His eyes were Madara’s, and Sasuke awakened his without Senju cells — Madara’s understanding hadn’t been complete.
Natural energy is the key… but what exactly is that “catalyst”?
“An incredible secret.
If I can merge Jugo’s lineage with this, I might stand a chance — maybe even match Madara Rinnegan for Rinnegan.”
Next, he pulled up his entry on Kakashi:
> [Feedback: Gained Hatake‑style swordsmanship.]
What did I even write?
It was nothing special… why such a reward?
But the biggest surprise came from Obito’s story about the bell test:
> [Feedback: Gained Minato’s spatial perception and insight.]
“Spatial insight… could this be the Flying Raijin?”
His heart raced.
The Flying Raijin was Minato’s signature technique — what earned him the “Konoha’s Yellow Flash” title, so feared that enemy commands ordered a full retreat if he appeared.
The contrast was stark: Sakumo had been shamed for abandoning a mission, yet Minato was given a standing order to be avoided at all costs.
That was the weight of his legend.
As the knowledge settled in, Yuu realized it included not just Minato’s spatial sense, but notes on the technique itself — and a name he hadn’t expected: Uchiha Izuna.
Izuna — Madara’s younger brother, a powerhouse of the Warring States era, and Tobirama’s greatest rival, killed by Tobirama’s own hand.
Why would the Flying Raijin carry Izuna’s name?
Reading deeper, he understood: this wasn’t Minato’s own notes alone — it was Tobirama’s original research, paired with Minato’s own refinements.
Most ninja see space as fixed three‑dimensional geometry.
The Flying Raijin treats it as fluid: imagine a straight road, then curling it into a cylinder so the start and end meet.
Step across that fold, and you arrive instantly.
To Yuu, this was familiar — the wormhole principle from his old life, bending 2‑dimensional space to traverse 3‑dimensional distance.
The Flying Raijin works by flooding the senses with chakra to stretch spatial perception, then casting a reverse summoning jump to a pre‑marked coordinate.
Which meant the first requirement was superhuman spatial awareness.
Yuu recalled the Third Shinobi World War, where Minato had once pressed a single finger to the ground and instantly counted every enemy nearby.
His sense of space rivaled — and perhaps surpassed — Tobirama’s.
Everything Minato had written confirmed it: his spatial perception was no trick — it was a fundamental shift in how he saw the world.