The problem with being a genius in a world full of geniuses was that you had to be very careful about which kind of genius you chose to be.
Kenji had been thinking about this since age three. There were two categories of prodigy in Konoha, broadly speaking. The first kind announced themselves — they were loud, visible, their talents undeniable and their progress tracked by the village the way farmers tracked promising weather. Itachi Uchiha was this kind. The kind that made jonin instructors write reports and kage take notice.
The second kind kept their heads down. They were capable, clearly above average, but never so far above average that they attracted the wrong kind of attention. They moved through the system without becoming a subject of the system.
Kenji had chosen the second kind from the beginning.
He was six years old now, and the choice had served him well. Minato was proud of him in the quiet, specific way that Minato did everything — a hand on his shoulder, a conversation about chakra theory over breakfast, an occasional look that meant I see you clearly and I'm not entirely sure what I'm seeing but I trust it. Kushina was proud of him loudly and continuously and at significant volume. Neither of them pushed. Neither of them reported to the village council that their eldest son had mastered chakra control fundamentals at age five and had been running tree-climbing exercises in the backyard since the week after.
Nobody outside the house knew how far along he was.
That was by design.
He was in the backyard on a Thursday morning, ostensibly practicing the basic chakra flow exercise Minato had given him two months ago, actually running through the advanced pressure regulation technique from his purchased skill book for the forty-seventh time, when the system produced a new notification without warning.
[SIDE QUEST AVAILABLE]
Objective: Demonstrate controlled chakra output to a qualified observer.
Reward: 150 EXP, 100 SP
Time limit: 30 days
Note: Observer must hold jonin rank or higher.
He read it twice and closed the panel.
Minato was in the house. Minato was jonin rank in the same way the ocean was wet — technically accurate but somewhat missing the scale of the thing. The quest was trivially completable.
The question was whether completing it was strategically sound.
He stood on the trunk of the backyard tree — eight feet up, chakra holding him steady without visible effort — and thought it through. Demonstrating controlled output to Minato would accelerate his formal training timeline. Formal training meant academy enrollment, and academy enrollment meant access to training grounds, mission records, and a legitimate reason to be moving around the village. All of that was useful.
The downside was attention. More visibility meant more questions. And Minato's questions were the kind that had a way of arriving at the right answer through unexpected routes.
He was still weighing it when Naruto appeared at the back door.
His brother was one year old and had recently discovered walking, which he approached the way he approached everything — with maximum enthusiasm and minimal concern for consequences. He crossed the backyard in a wobbling straight line toward the tree, arms out for balance, face set in an expression of absolute determination.
He stopped at the base of the trunk and looked up at Kenji.
Then he grabbed the bark with both hands and clearly intended to climb it.
Kenji dropped down in front of him before the attempt could begin. "No."
Naruto looked at him.
"You'll fall."
Naruto continued looking at him with the specific expression that meant your logic is noted and rejected.
"When you're older," Kenji said.
Naruto sat down abruptly on the grass, apparently deciding that if climbing wasn't available, sitting in protest was the appropriate response. He patted the ground beside him in what Kenji had come to recognize as a summons.
Kenji sat down.
They stayed like that for a few minutes — Naruto examining a beetle that was making its way across the grass, Kenji running through his mental inventory of system resources. He had accumulated 310 SP since the tutorial completion. He had been conservative with spending, waiting until he understood the full catalogue well enough to prioritize correctly.
He opened the shop.
He had been through it systematically over the past several weeks, building a priority list. The items he wanted most were still locked or expensive. But he had identified three purchases that made sense at his current level and resource level.
The first was already decided: another Skill Book. He navigated to the section and found the one he'd flagged previously.
[ITEM: Taijutsu Foundations — Combat Application Vol. 1]
Covers striking mechanics, defensive positioning, weight distribution, and close-range engagement principles. Learning Assimilation compatible.
Cost: 200 SP
He bought it. The book materialized in his inventory. He pulled it out, opened it, and three seconds later it was gone — absorbed, integrated, sitting in his memory alongside everything else. His body didn't change immediately; the knowledge was there but the muscle memory would require actual physical drilling to fully activate. That was fine. He had time and a backyard.
Second purchase. He navigated to Medical Supplies.
[ITEM: Basic Antidote x3 — Neutralizes standard poisons and mild toxins. Single use per vial.]
Cost: 60 SP
He bought them. Three small vials appeared in his inventory, slots two through four. He left them there. They weren't for immediate use — they were the beginning of a habit. In his previous life, the people who survived longest were not always the strongest. They were the ones who prepared for problems before the problems arrived.
Third purchase. He had been going back and forth on this one for a week.
[ITEM: Dimensional Pocket Upgrade — Expands inventory from 20 slots to 50 slots. Permanent upgrade.]
Cost: 500 SP
He didn't have 500 SP. He had 250 after the first two purchases. He closed the shop and made a note. That upgrade was the priority target for his next earning phase.
He looked at the quest notification still sitting in his log.
100 SP for showing Minato something he could show him in thirty seconds. That made the decision easier.
He found his father that evening in the study, reading through mission reports with the particular focused stillness that meant he was processing several things simultaneously and could be interrupted but would remember the interruption.
"Dad."
Minato looked up. "Hey. What's up?"
Kenji held out his hand, palm up, and released a controlled current of chakra into the air above it — not the lantern-bright overflow from eight months ago, but something precise and intentional. A thin stream that he shaped into a slow rotation, held it for five seconds, and then pulled it cleanly back.
Minato set down the report he was holding.
He looked at Kenji's hand. Then at Kenji's face. Then at his hand again.
"How long," he said, very calmly, "have you been able to do that?"
"A while," Kenji said.
"Define a while."
"Since I was five."
The silence in the study was the particular kind that happened when a very intelligent person was rapidly revising a significant number of assumptions. Kenji waited it out. He was good at waiting.
"Show me the tree-walking," Minato said finally.
They went to the backyard. Kenji walked up the trunk of the tree, across the underside of the lowest branch, and back down, maintaining consistent chakra output the entire time. He was not showing his best. He was showing enough.
When he came back down, Minato was standing very still with his arms crossed and an expression that was equal parts pride and something more complicated.
"Kenji," he said.
"Yes?"
"Why didn't you tell me sooner?"
Kenji considered several answers. He selected the one that was true without being the whole truth. "I wanted to understand it myself first. Before anyone else had opinions about it."
Minato looked at him for a long moment. Then he nodded, slowly, as if that answer had confirmed something rather than answered it. "Okay," he said. "Starting next week, we train properly. Every morning before I go to the office. You and me."
"Okay," Kenji said.
The system notification appeared quietly in the corner of his vision:
[SIDE QUEST COMPLETE]
EXP Gained: 150
SP Gained: 100
Total SP: 350
He was 150 SP away from the inventory upgrade.
Behind him, from the house, Naruto's voice rose in the sustained melodic cry that meant he had woken from his nap and found no one in the room and had opinions about it.
Minato sighed with the specific exhaustion of a man who loved his children very much and was also very tired. "Your brother's up."
"I'll get him," Kenji said.
He went inside, pulled Naruto out of his crib, and held him up to eye level. Naruto, mid-cry, paused to assess whether this development was satisfactory. He decided it was. The crying stopped.
"I had a productive day," Kenji told him.
Naruto grabbed his nose.
"That's fair," Kenji said.
He carried his brother to the window and they stood there together while the sun went down over Konoha, and Kenji looked at the village that was going to need him to be ready and thought about training schedules and SP targets and the locked category at the bottom of the shop with the biohazard icon.
Twelve years.
He had twelve years before the dimensional fabric of this world started tearing at the seams.
He intended to use every single day of them.
End of Chapter 4