Afternoons: Individual practice. He split his time between taijutsu refinement and chakra control exercises. The latter was frustrating—he could feel the energy inside him, that warm reservoir of potential, but directing it precisely was like trying to write with his off hand. Possible, but laborious.
Evenings: The library. He devoured information on chakra theory, elemental transformation, the history of Konoha's major conflicts. Some of it confirmed what he half-remembered from his nephew's lectures. Some of it was entirely new.
The Second Shinobi World War had officially ended two months before his arrival in Konoha. The peace was fragile, border skirmishes continued, and diplomatic relations with other villages, especially Iwagakure were tense at best, but the major combat operations had ceased. The village was rebuilding, licking its wounds, preparing for whatever came next.
What came next, according to his fragmentary memories, was the Third Shinobi World War. Maybe a decade away. Maybe less. He couldn't remember exactly when it started, only that it had been brutal.
He needed to be ready.
On his fifth day in the village, he visited Yuki.
The Third District Orphanage was a large building in a residential area, clean, well-maintained, utterly institutional. Children played in a courtyard under the supervision of adults who looked tired but kind. The sound of their laughter felt strange after days of training and study.
Normal life. Continuing despite everything.
He found Yuki in a corner of the courtyard, sitting alone while others played around her. She looked up when he approached, and something in her face eased.
"You came."
"I said I would."
He sat beside her on the low wall she'd claimed as her perch. The stone was warm from the sun. Around them, children shrieked and chased each other, oblivious to the two quiet figures on the periphery.
"How are you?" he asked.
Yuki considered the question with the same seriousness she'd shown before. "Better, I think. The nightmares are less." A pause. "They say I might be adopted soon. A family in the merchant district lost their daughter. They want someone to..." She trailed off.
"To fill the gap," Tatsuya finished.
"Yes."
He thought about empty spaces. About identities that didn't quite fit, roles you stepped into because someone had to. About becoming someone new because the person you'd been was gone.
"How do you feel about that?"
"I don't know." Yuki's voice was small. "They seem nice. But I don't want to forget. My parents. My brother. If I let someone else call me daughter, does that mean I'm replacing them?"
The question cut deeper than she knew.
"No," Tatsuya said, and was surprised by how certain he sounded. "You don't replace people. You carry them with you, even when you can't see them anymore. Even when your life changes around them." He paused, choosing his words carefully. "Letting yourself be happy again isn't betrayal. It's what they would have wanted for you."
Yuki was quiet for a long moment. Then, softly: "Is that what you do? Carry people with you?"
A woman's voice calling a name he couldn't remember. A hospital room that smelled of antiseptic. A life that had ended without warning or explanation.
"Yes," he said. "I try."
They sat in silence after that, watching the other children play. Eventually, Yuki's time ran out—visiting hours ended, and the caretakers began herding everyone inside. She hugged him before she left, a quick fierce grip that caught him off guard.
"Thank you," she whispered. "For remembering me."
Then she was gone, disappearing into the building with the others, and Tatsuya was left alone on the sun-warm stone.
I try to remember everyone, he thought. That's the problem.
He walked back to the barracks as the sun began to set, his mind heavy with thoughts that had nothing to do with training schedules or chakra theory.
The second week brought the first mission.
Yamada called him aside after morning training, his expression as unreadable as ever. "You're assigned to supplementary support for a supply escort. D-rank. No combat expected. Report to the north gate at 0500 tomorrow."
A D-rank. The lowest tier, reserved for tasks that barely qualified as missions. Escort duty, manual labor, errands that couldn't justify deploying actual combat personnel.
"Understood," Tatsuya said. "What am I supporting?"
"A genin team short one member. Temporary illness. You'll fill the gap until they return."
Fill the gap. There was that phrase again.
"Who's the jonin-sensei?"
"Kobayashi Ren. He's..." Yamada paused, which was unusual, the man rarely hesitated. "He's competent. Follow his orders, stay out of the way, don't cause problems."
An odd qualification. Competent should go without saying for a jonin. The fact that Yamada felt the need to specify it suggested something else.
Tatsuya filed the observation away. "Understood."
He spent the rest of the day preparing. Checked his equipment, restocked supplies, reviewed what little information the library had on standard escort procedures. The mission profile was simple: accompany a merchant caravan from Konoha to a village three days' travel east, ensure no bandit interference, return.
No combat expected. But expected wasn't the same as certain.
At 0500 the next morning, he arrived at the north gate to find a jonin and two genin waiting.
Kobayashi Ren was a tall man with a forgettable face, the kind of person you'd pass in a crowd without a second glance. Brown hair, brown eyes, average build. His equipment was standard issue, well-maintained but unremarkable. If not for the jonin vest, Tatsuya would have assumed he was a chuunin at best.
The two genin were more distinctive. One was a girl with red hair pulled back in a severe ponytail, her expression suggesting she'd rather be anywhere else. The other was a boy who looked barely ten, with an earnest face and the kind of nervous energy that came from wanting desperately to impress.
"You're the fill-in?" Kobayashi asked, his tone flat.
"Tatsuya Meguri. Reserve pool."
"Right." The jonin didn't introduce the others. "Stay with the cart. Don't wander. If you see anything suspicious, tell me." He turned and started walking. "Let's go."
The red-haired girl fell into step beside Tatsuya as they passed through the gate. "I'm Akane," she said quietly. "The kid is Daisuke. Don't mind Kobayashi-sensei, he's always like this."
"Like what?"
"Checked out." Akane's voice carried a bitter edge. "Something broke him. Nobody talks about it."
She shook her head. "Doesn't matter. Just do your job and keep your head down. That's what we all do."
Tatsuya noted the warning. A sensei who'd given up caring, students who'd learned to work around him. Not a healthy dynamic. Not the environment that produced strong shinobi.
But it wasn't his team, wasn't his problem. He was here to fill a gap, not to fix broken systems.
The mission proceeded without incident for the first two days. The merchant caravan—four wagons carrying textiles and preserved food—traveled at civilian pace along well-maintained roads. Tatsuya walked with the carts, scanned the treelines, and kept his mouth shut.
At night, he practiced. Away from the camp, in whatever clearing he could find, working through taijutsu forms and chakra exercises by moonlight. The body was adapting, slowly. The movements came smoother each day, the chakra responded more readily to his direction.
Progress. Incremental, invisible progress.
On the third night, something changed.
He was practicing in a grove maybe two hundred meters from camp—close enough to return quickly, far enough for privacy. The moon was high, casting everything in silver-grey shadow. He was working on chakra control, trying to maintain a stable flow to his hands, when he felt it.
Presence.
Not sight, not sound—something deeper. That chakra sense he'd touched briefly at the forward camp, stirring again without warning. It painted the world in new colors: the camp behind him, four bright points of warmth. The forest around him, scattered signatures of wildlife. And to his left, maybe fifty meters away, something that felt wrong.
He went still. Drew a kunai without conscious thought.
The presence didn't move. It watched.
For a long moment, nothing happened. Then the presence withdrew, not quickly, but deliberately, fading into the forest with the unmistakable intent of someone who wanted to be noticed leaving.
A message. I see you. And I want you to know it.
Tatsuya didn't sleep that night.
The mission concluded without further incident. The caravan reached its destination, the merchants paid the village's fee, and Team Kobayashi returned to Konoha by a different route. No one mentioned the presence in the forest. Tatsuya didn't bring it up.
But he didn't forget.
Back in the village, he reported to the Administrative Building for debriefing. The chuunin on duty took his mission log, asked perfunctory questions, and dismissed him with directions back to the reserve pool.
"Wait," Tatsuya said before leaving. "Is there... a procedure for reporting unusual observations during missions? Things that aren't threats but might be... significant?"
The chuunin raised an eyebrow. "What kind of observations?"
Tatsuya hesitated. Describing a feeling of being watched seemed ridiculous. But if there was something out there—someone—testing reserve genin...
"Never mind," he said. "It was probably nothing."
He left before the chuunin could press further.
That night, alone in his barracks room, he pulled out the coded journal he'd started keeping. Notes on the future, as much as he could remember. Names, dates, events—fragments of knowledge that might prove critical.
He added a new entry:
Someone is watching the reserve pool. Don't know who. Don't know why. Stay alert.
Below it, almost as an afterthought:
Dreams again last night. A woman with dark hair, calling for Tatsuya. Not him—the other Tatsuya. The one who lived in this body before.—who was he? What or who did he lose?
He stared at the words for a long time.
Then he closed the journal, hid it in his equipment chest, and lay down on the hard mattress.
Foundation, he thought. Everything starts with foundation. Get strong enough, and the questions will answer themselves.
Sleep came eventually. When it did, he dreamed of eyes watching him from the darkness, and a voice whispering words he couldn't quite hear.
In the morning, he rose before dawn and went to train.