Orochimaru had not expected to enjoy fuinjutsu.
He appreciated it, certainly. He respected its outcomes. He had dissected seals on corpses, traced formulas across skin and kunai and other objects. He had seen what it could do to chakra pathways, to memories, to bodies wanting to hide their secrets and to the will of people too weak to resist.
But the practice of it—the endless ink, the circles, the meticulous care not to smudge a line—he had always assumed would bore him.
Urahara Ren changed that.
Or perhaps revealed something instead.
The young man had an irritatingly steady way of talking about impossibly complex systems as if they were nothing more than puzzles with missing pieces. He didn't posture the way some older seal-nin did, hoarding knowledge to justify their titles. He explained.
Patiently.
Thoroughly.
As if he expected one to understand, and was simply waiting for one's mind to catch up.
Orochimaru had tested that patience more than once—deliberately. He'd asked for cross-disciplinary details, things that brushed the edges of fuinjutsu but belonged technically to other fields.
"Seals that regulate temperature," he'd said, idly, after class. "What is the theoretical minimum threshold before tissue damage begins in human cells? And how much variance do you allow for individual tolerances?"
Ren had not blinked.
"For human shinobi with standard training?" he'd replied. "It depends on the age, but generally anything below—"
And then he'd rattled off numbers. Precise ranges. Differences between hypothermia and frostbite. He'd sketched, almost absently, a seal array that adjusted its output based not only on external temperature but on the user's baseline circulation and chakra flow.
He knew too much about medicine for someone who only worked part-time at the hospital.
He knew too much about everything.
Physics slipped into his explanations when he spoke about impact seals. Chemistry when he talked about ink composition. Biology when Tsunade pressed him on why certain suppressants held better near joints than over muscle.
Orochimaru had walked away from those lessons with a familiar feeling in his gut—a prickling interest, a quiet, coiling kinship.
He knew what it was to have a mind that refused to stop.
To see patterns where other people saw noise and to be called dangerous for it.
So when Hiruzen assigned him to this mission, Orochimaru was not displeased. Curious, yes. Wary of the risk. But not displeased.
.
He arrived at Konoha's main gate ten minutes early.
The morning mist still clung low to the ground, curling around the base of the walls. The guards on duty eyed him with the mild unease that came from knowing he could kill them before they finished raising the alarm and trusting he wouldn't.
Someone else was already there.
A red-haired woman leaned against the inner wall, a folder in her hands, eyes moving steadily back and forth over its contents. She stood like a shinobi—weight balanced, attention apparently on the page and actually on the surroundings.
When he approached, her gaze flicked up.
Her posture straightened immediately.
"Good morning, Orochimaru-san," she said, inclining her head. "Yamamoto Yume, Barrier Corps. I'll be serving as Urahara-san's aide for this mission."
Her tone was crisp, respectful without simpering. Her chakra felt steady; jōnin-level, Tatsumi hadn't exaggerated.
Orochimaru inclined his head in return.
"Yamamoto-san," he said. His eyes slid briefly to the file in her hands. "Reviewing something important?"
Her fingers tightened minutely on the edges of the folder—just enough to betray investment, not enough to suggest anxiety.
"The Net," she said. "Vice Captain Urahara's documentation on the anchor chain we'll be visiting. I wanted to refresh the last-update notes before we leave."
There was a faint flush across her cheekbones now.
"He calls it a Net," she added, almost reverent. "But it's more like something living. You cannot see it on the map, but on paper—" She broke off, catching herself. "Ah. Apologies, Orochimaru-san. I get… enthusiastic."
Orochimaru watched her for a beat.
"What, exactly, are you reviewing?" he asked. "The anchor locations, or the modifications he intends to make?"
"Both," Yume said promptly. She flipped the folder open, pages fluttering. "The anchors are here—" she tapped one map "—but these…" Her fingers brushed a neat set of diagrams. "…These are his projected updates. Reinforcement loops. Flex points. New classification markers for chakra density and—"
She stopped again, color deepening.
"He wrote them late," she said, softer. "Most people's handwriting deteriorates when they're tired. His doesn't. If anything, it gets… more precise."
Orochimaru understood that. His own hands steadied when his mind was fully engaged.
"You've worked with him often," he observed.
Yume's mouth curved, small and proud.
"Since I understood the importance of the Net project," she said. "So, I've watched him build it from theory to reality. It's…" She shook her head, at a loss for a moment. "…He sees the world differently. Through patterns. Threads. The rest of us are just… trying to keep up."
There was awe in her voice now, unhidden.
Orochimaru filed that away.
He didn't begrudge her admiration; she had good taste, obviously. It was… context.
He'd suspected the Barrier Corps revered Urahara. It was useful to have confirmation.
Footsteps pounded up the path.
Jiraiya arrived exactly on time, hair wild, vest half-zipped, yawning so wide his jaw cracked.
"Morning," he mumbled at the gate guards, already rubbing at his eyes.
Then he saw Yume.
The transformation was instant.
He straightened, grin blooming, hand going up in a lazy wave.
"Well, hello," he said, all traces of sleep gone. "Did the Hokage forget to mention we had such lovely company? Jiraiya, future greatest shinobi in the world." He thumped a fist against his chest. "Present shinobi extraordinaire."
Yume blinked, then gave him a polite nod that said she had appraised him and filed him under harmless noise.
"Yamamoto Yume," she said. "Barrier Corps. Pleasure to meet you, Jiraiya-san."
Orochimaru watched them with half an eye, most of his attention still on the forest beyond the gate, letting his senses stretch, cataloguing chakra signatures, air currents, the faint reek of something dead in the ditch near the road.
Five minutes ticked by.
Ren was late.
Not truly late, not in a mission-jeopardizing way, but late relative to his usual irritating punctuality. Orochimaru found himself cataloguing that too.
When the white-haired vice captain finally appeared, it was at a quick trot, travel pack slung over one shoulder, mask hanging at his throat instead of pulled up. His hair still hadn't decided on a direction, but his posture was alert, not half-asleep.
"My apologies," he said as soon as he was within easy earshot, bowing. "I had to drop something off at the hospital. Thank you for waiting."
"It's five minutes," Jiraiya said. "We're not old yet. We can handle it."
Yume had gone very still.
Then, as if a seal had been broken, she moved—straight toward Ren, steps quick, eyes bright.
"Vice Captain," she said, relief and something warmer slipping into her voice. "Good morning."
She stopped just inside his personal space, leaning in with the unconscious ease of someone who had long since decided that distance was optional.
Ren, to his credit, did not physically retreat.
His shoulders did tighten, only a little.
"Yume-san," he said, tone perfectly polite. "You're early."
"So are you," she said. "Well. Almost." A hint of teasing there. "I was just reviewing the anchors. Your notes on the secondary reinforcement loops for the eastern line are—"
She cut herself off, cheeks pinking again.
Ren rubbed at the back of his neck, eyes sliding away.
"I'm glad they're useful," he said. "We can go over them again tonight, if you'd like. After we make camp."
Yume's smile brightened.
"I would like that," she said.
Orochimaru felt his mood twist.
It was subtle. Most people wouldn't have noticed; his expression rarely changed much at the best of times. But inside, something coiled.
It was… irritating.
Not her competence. She clearly knew the project. Not her admiration; that was deserved.
It was the way Ren's focus shifted, the way the easy, analytical tone he used when talking about seals softened, just slightly, when he addressed her.
A tiny adjustment.
A rebalancing of attention.
Ridiculous, he told himself. Irrelevant. He had come to Konoha to escape one set of suffocating expectations; he wasn't about to become distracted by a colleague's… fondness.
Jiraiya, of course, noticed immediately.
He'd grown up next to Orochimaru; he could read the faintest change in his breathing.
His brows went up. His eyes flicked from Yume pressed subtly into Ren's space, to Ren's carefully neutral posture, to Orochimaru's narrowed gaze.
A slow, delighted grin started to spread across his face.
Orochimaru cut it off before it could fully form.
"Urahara-san," he said, voice even. "What's our first destination?"
Ren blinked, attention snapping to him gratefully.
"Ah," he said. "Right. We'll follow the main road east for half a day, then cut north into the forest. The first anchor is at a natural choke point where three deer trails intersect. It's tied to a rock formation there, so we don't have to worry about human interference."
"Any known bandit activity in that region?" Orochimaru asked.
"Some," Ren said. "Nothing organized. The last report from the patrols counted a few small groups near the old logging camps. We can avoid them if we stay high once we leave the road."
"High?" Jiraiya repeated.
Ren gestured vaguely upward.
"Trees," he said. "Or, if you prefer, I can try out a new seal that lets you walk on the sky without—"
"No, trees are fine," Jiraiya said quickly.
Yume laughed quietly, tension eased.
Orochimaru felt the annoyance ebb, replaced once more by curiosity.
He stepped slightly closer, enough that he could see the fine ink stains at the edges of Ren's fingernails, the faint shadows under his eyes that two nights' sleep clearly hadn't fully erased.
"You said it will take two weeks," Orochimaru said. "Is that assuming nothing goes wrong?"
"That's assuming only minor things go wrong," Ren corrected. "Something always goes wrong. Weather. Wildlife. Jiraiya."
"Hey," Jiraiya protested.
Ren's mouth curved behind the mask.
"In a perfect world, we'd do this over three weeks with scheduled rest days and time for local adjustments," he continued. "But given the war situation, two weeks of efficient travel is… acceptable."
"Do you anticipate any… surprises from the Net itself?" Yume asked, half eager, half apprehensive. "You spoke about it like something that could… fight back, if stressed."
Ren's gaze flicked to the distant treeline.
"Not fight back," he said slowly. "But it's adjusting even when I'm not looking at it. The more data it gets, the more it shifts. I built flexibility into the structure. If we've misjudged that, some sections might have… grown in unexpected ways."
"You sound almost fond," Orochimaru observed.
Ren considered that.
"I suppose I am," he said. "It's our child. Ugly, unfinished, moody. But ours."
Yume's eyes softened.
Jiraiya snorted. "Never thought I'd hear someone describe a country-wide barrier as moody," he said. "Figures it'd be you."
"Chakra has moods," Ren replied mildly. "You'd know that if you stopped trying to brute force everything."
Orochimaru watched the back-and-forth, the easy rhythm of it. The way Ren shifted effortlessly between teasing and instruction, between deference and quiet certainty.
He wondered, briefly, what Ren would be like without the mask. Without the careful distance. Without the calculations that always seemed to run just behind his eyes.
Dangerous, his instincts said.
To others, yes. Possibly to him, too.
He filed that away with everything else.
The gate guards waved them through with the weary familiarity reserved for shinobi they'd seen grow from brats into weapons.
As they stepped beyond the village walls, leaves rustled overhead. The world opened up into road and forest and sky.
Yume moved naturally to Ren's right, just close enough that their sleeves brushed when they adjusted their packs.
Orochimaru took the left, a half-step behind, an old habit from missions with Jiraiya and Tsunade: watching flanks, covering angles.
Jiraiya fell in behind them, whistling under his breath.
The road stretched out.
"Urahara-san," Orochimaru said quietly, once the gate was a memory and only the four of them and the trees could hear. "When you spoke of the Net as… artificial intelligence."
Ren's shoulders twitched.
"I did say not to get attached to the term," he said.
Orochimaru hummed.
"Yes," he murmured. "But I find myself… interested in seeing how it behaves when you shake it."
He glanced sideways, eyes hooded.
"And in seeing how you behave," he added, "when you're not at a desk."
Ren huffed softly.
"Hopefully," he said, "not like someone bleeding out in a ditch."
Yume immediately said, "I won't let that happen."
Jiraiya added, "If anyone's bleeding out in a ditch, it'll be me. I have the most practice."
Orochimaru's lips curved, faint and fleeting.
"We'll see," he said.
Then he pushed off the road and into the trees, chakra catching on bark, body moving smoothly from branch to branch as the forest swallowed them all.
.
Travel, Orochimaru had learned, revealed more about people than battle did.
Battle was sharp, brutal, concise. People condensed themselves down to instinct and training. Useful data, certainly, but limited.
Travel, on the other hand, stretched them out. Left them with hours of road and trees and not enough danger to justify silence.
Urahara filled that space with… conversation.
Not constant. He wasn't Jiraiya. But whenever Yume asked him something about the Net, he answered. Thoroughly. Patiently. Like he was incapable of giving a half-thought explanation.
"—the anchor at the river fork cares less about direction and more about flow volume," Ren was saying up ahead, feet barely whispering over the branches. "We tied it to the water level, not the road, because merchants can change their routes. Rivers don't, unless someone does something very stupid with earth jutsu."
Yume made a thoughtful little sound.
"So if the water level drops too far, the Net weakens there," she said.
"Temporarily," Ren corrected. "We built redundancies into the surrounding nodes. They take the load if one drops below a certain threshold. Like… hm." He paused, searching for the metaphor. "Like a circulatory system rerouting blood flow if an artery constricts."
Yume laughed softly.
"Always with the body analogies," she said. "It's almost romantic."
Orochimaru's grip tightened infinitesimally on the branch under his hand.
Ren coughed.
"It's just the most intuitive model," he said. "Everyone here has a body. Not everyone has the patience to learn mathematics."
"You make it sound so easy," Yume murmured. There was warmth in her tone now. "Like it's just common sense to see the world as a network of veins and seals."
"It's just… practice," he deflected. "And too many late nights with ink."
"And genius," she said, a shade lower.
Ren's chakra flickered in a way Orochimaru was starting to recognize as embarrassed fluster.
"I'm not—"
"You're insufferable when you deny it," Yume said cheerfully. "Vice Captain Genius Urahara. It fits."
Jiraiya snorted from his branch a little behind Orochimaru.
Orochimaru said nothing.
Internally, something in him scratched at the bars of a cage.
.
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I'm getting to old to study, work, and move to a new house, on top of writing of course. Oh well. Happy Birthday to me, I guess?
Also, if you want to support me and read chapters ahead, go to my p@treon: JorieDS