Reincarnated In Attack On Titan World As Nobody

As the first day of boot camp, Klaus had planned to give the recruits a harsh warning—something to establish the prestige of the camp and make them easier to manage later.

He hadn't expected Lock.

Standing beside John, Klaus watched as the boy moved through the trees, his 3D gear hissing with precision bursts of compressed gas. Agile, balanced, accelerating faster and faster, Lock didn't just operate the gear—he merged with it. That kind of talent could be seen with the naked eye.

Klaus narrowed his eyes. A monster like this only comes once in a generation.

"If there isn't another genius in this batch," Klaus muttered to himself, "Lock alone could carry all of them."

After a moment's consideration, he made a decision. "John, from today on, I'll handle Lock's training personally. You'll take over the rest of the recruits."

John gave a crooked smile. "Understood. Instructor, the last time I saw you take this much interest in a recruit… it was Levi. Do you really think Lock can compare to him?"

The name alone conjured an image in John's mind. Levi—already a legend. Even back in the training corps, he had grasped the fundamentals of 3D Maneuver Gear with frightening speed. Now, as part of the Survey Corps, he stood unmatched, fighting Titans alone and surviving battles no ordinary soldier could.

Klaus didn't deny it. His expression softened, touched with genuine respect. "Levi is exceptional, yes. But Lock is even more gifted."

"Because of his age?" John guessed.

Klaus nodded. "Exactly. He's only fourteen. If he survives long enough, his future will surpass even Levi's."

John whistled low. "Instructor, you think very highly of him."

"I trust my eyes," Klaus said firmly, gaze fixed on Lock, admiration written plainly across his face.

John knew better than to press. Klaus's passion for talent had flared again, and nothing could sway him now. With a small shake of his head, John turned away. Better to join the other recruits than linger here where Lock's performance only widened the gap between genius and ordinary men.

Not long after, Lock's gas ran dry. He disengaged his hooks, cutting momentum and landing smoothly on the ground. His shoulders rose and fell with controlled breaths as soreness from overworked muscles spread across his frame.

When he looked up, it wasn't John waiting for him but Klaus.

Lock straightened instinctively. He was about to ask where he had gone wrong when, unexpectedly, a clear system notification echoed in his mind:

[Ding. The host has trained diligently. 3D Maneuver Gear proficiency +1.]

In that instant, new insights unfolded in his thoughts—movement patterns, gas timing, angles of momentum. What had seemed clumsy or wasteful only moments ago suddenly made sense.

So that's how it works…

Suppressing the thrill, Lock bowed slightly. "Instructor, I feel like some of my techniques are off, but I can't pinpoint where. Could you correct me?"

Klaus's stern face eased. "Of course."

He broke down each flaw he'd observed—Lock's turns, his gas release timing, the way he braced his core. His explanations were sharp and precise.

Lock listened carefully, adjusting each point in his mind. Klaus wasn't just a title instructor—his experience showed. For a moment, Lock even caught himself admiring the man's teaching.

That recognition didn't go unnoticed. Klaus felt a flicker of pride; praise from a prodigy like this meant more than from any other recruit.

When his muscles had recovered enough, Lock stepped forward again. "Instructor, I'd like to continue practicing."

Klaus raised an eyebrow. "Your body can still take it?"

Lock nodded firmly. "I can handle it."

"Then go," Klaus said, a small smile tugging at his lips. He valued diligence as much as talent.

Lock quickly swapped out his gas and shot back into the trees. His expression sharpened, excitement mingling with concentration.

From the ground, Klaus folded his arms, watching him move. "It's good to be young," he murmured.

But soon that quiet smile faded. Lock's mistakes were already vanishing, his control refining with each flight. The improvement was visible, almost unnerving. Klaus realized it wouldn't be long before he had nothing left to teach this boy.

It was a teacher's dream—and a teacher's headache.

Around them, the other recruits finished their balance tests. Those who failed were forced to continue practicing in place, while those who passed began learning gear assembly under supervision. Now and then, their eyes drifted toward Lock as he soared between trees with growing mastery.

The female trainees watched in open admiration. The male recruits clenched their fists, faces twisted with envy. Each one wanted to launch into the sky like him, to taste that freedom. But Klaus's strict gaze—and their own lack of ability—kept them grounded.

Klaus shook his head. Students who feared failure would never achieve greatness.

By the end of the day, training closed in a strange balance. For Lock, fulfillment; for everyone else, discouragement. But whatever they felt—envy, awe, jealousy, or helplessness—not a single recruit dared resent him.

Lock was already too far above them.

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A/N: Sorry for making you wait so much. From tomorrow onwards, advance chapters will be uploaded to my Patreon.

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