WebNovels

Chapter 20 - Chap 20- Cultivators of Shibuya Underground Spirit War

The Shibuya subway station at night was never truly quiet—there was always the distant hum of fluorescent lights

The echo of unseen water dripping, and the occasional static pop of digital advertisements still flickering even after the trains had stopped. But tonight, the air felt heavier.

Ryuu stood at the edge of the lower platform, hood pulled low, his breath fogging under the dim glow of malfunctioning lights. Aera hovered beside him in semi-transparent hologram form, cycling through data streams only he could see.

"This is the location," Aera confirmed, her voice calm but clipped. "Karma Fracture detected—medium density. Multiple spiritual signatures active in the vicinity. Cultivators, Ryuu."

He scanned the tunnel entrance ahead. A strange iridescent shimmer coated the ground—like oil and static had merged into a liquid mist.

He stepped forward cautiously, feeling a subtle tug beneath his skin, like his spirit was reacting.

"This place… It's like the code of the city's breaking down," he muttered.

"The spiritual network's been corrupted,"* Aera replied. "This area's under layered distortion—two or more factions are manipulating the karma flow.

You're stepping into contested ground."

The tunnel opened into a forgotten maintenance corridor, long abandoned and half-consumed by digital graffiti—glowing symbols pulsed with ancient spiritual energy mixed with cursed binary code.

Strange fusions of talismans and hacked signage lit the walls. It wasn't just abandoned—it had been claimed.

"Should we really be doing this alone?"Ryuu asked under his breath.

"Too late to back out," Aera whispered, her tone now hushed. "Movement detected ahead. Visual feed locked. Going silent."

Ryuu pressed deeper, footsteps muffled. The sound of crackling energy and distant combat reached his ears—clashes of qi, distorted howls, and the unmistakable screech of cursed metal.

He stopped at the edge of a downward ramp, peering through a broken section of wall.

There, in the middle of what used to be an old maintenance chamber, two groups clashed in a silent, brutal ballet.

One side wore flowing uniforms of dark navy and white, moving with precision.

Karma seals glowed around their hands and blades. Their attacks flowed like calligraphy—measured, elegant, deadly. The Kanzaki Sect.

The other group was chaos incarnate—black tactical gear interwoven with cursed tech tattoos and neon implants. Weapons surged with corrupted energy, blasting unstable beams of black-red karma code. The Onmyo Syndicate.

Ryuu's breath caught in his throat as he spotted her—Mayumi Kanzaki herself, elegant in motion, cutting through enemy lines like a blade of inevitability.

She didn't hesitate. Every strike was decisive, her presence calm, her aura flaring with silver-blue fate energy. She wasn't just a student anymore. She was a warrior.

"She's leading the squad…"* Ryuu whispered. "What the hell is she doing here?"

"Elite disciple," Aera finally broke silence again. "Mission parameters unknown. But this is no drill. This is war."

Just then, a cursed drone buzzed overhead—its red scanner passed too close.

PING.

The drone paused.

Ryuu's eyes widened. "Aera—"

"Too late. We've been marked."

The drone let out a mechanical screech. The Onmyo Syndicate's heads snapped up.

Ryuu turned and bolted back up the ramp.

"Rerouting escape path. Deploying firewall in 10 seconds," Aera barked as alarms echoed through the chamber.

"I really hate Mondays!" Ryuu shouted, sprinting into the flickering darkness.

Ryuu's sneakers pounded against the concrete as red-coded warning sigils blinked behind him. Shouts erupted below — the Onmyo Syndicate had broken formation.

"Firewall ready. Drop point: next junction. Five seconds!" Aera called out, her holographic form glitching slightly from the spiritual interference.

"Five seconds is a lifetime when you're being hunted by cursed-tech lunatics!"

Ryuu yelled, rounding a corner.

The corridor ahead shimmered,

and with a sharp sound like shattering glass, a data firewall deployed mid-air — a glowing hexagonal barrier infused with spirit code.

Ryuu dove through just as a cursed bolt exploded behind him, scattering black-red flames along the walls.

He rolled to his feet on the other side, chest heaving, and slammed his back against the wall.

"Barrier holding… for now," Aera said, recalculating data streams. "You bought us sixty seconds."

"That wasn't a battle… it was a slaughter."

Ryuu peeked through a crack in the firewall. The Kanzaki Sect was still holding their ground, but the Onmyo Syndicate was swarming like ants—each warrior fueled by cursed karma energy that felt like spiritual static clawing at his mind.

Mayumi stood in the center, untouched. Her eyes glowed faintly, silver threads of fate weaving around her. Her blade pulsed with calligraphy-like sigils, slicing corrupted energy in midair.

"She's insane,"Ryuu whispered. "She's *

perfect."

"Don't get distracted," Aera warned. "The Syndicate noticed your energy signature. You're marked. And they won't stop until it's purged."

Suddenly, a crackling surge of energy struck the top of the firewall.

Ryuu staggered back as one of the Syndicate's hackers phased through, ghost-like, his body composed of code fragments and half-corrupted flesh.

"Target: Spirit Hacker." The figure's voice echoed with auto-tuned distortion. "Eliminate."

Ryuu's eyes narrowed. "You want a hacker? Let's go."

He raised his hand — the spirit-channel glove Aera gave him activated, circuits glowing along his fingers. He swiped through a virtual interface midair.

"Deploy: Spirit Ping — Sonic Loopback."

A burst of feedback hit the hacker square in the chest — digital chains of karma-code wrapped around his limbs, holding him in place as sparks danced around him.

"Good hit!" Aera shouted. "We've got a three-second stun window!"

Ryuu sprinted forward, forming a spiritual seal in his hand. He leapt and drove the seal into the hacker's chest.

BOOM.

The hacker exploded into corrupted dust, vanishing into the glitching shadows.

"Nice!" Ryuu panted, flexing his fingers. "Didn't even need a sword for that one—"

Before he could finish, a loud metallic clang echoed from the tunnel ahead.

The firewall was breaking.

"Time to go," Aera snapped. "Follow the emergency route I'm mapping. Now."

Ryuu ran again, deeper into the maintenance network.

Alarms from both factions echoed behind him. Even the Kanzaki Sect's spiritual harmonics were fluctuating.

Aera projected a temporary cloaking shield, bending light and karma signature to hide them as they slipped through a side tunnel into a sealed power relay room filled with old Tokyo Metro servers—now acting as leyline amplifiers.

"This place…" Ryuu looked around. *"It's a spiritual tech-node."

"Exactly. Hidden cultivation sites like these power sect battles across the city.

The war's been happening for decades—just hidden behind the illusion of modern life."

Aera's tone turned grim. "And now, you're in the middle of it."

Ryuu leaned against the wall, sweat dripping down his face. "I didn't sign up for a sect war. I just wanted to level up and maybe flirt with a few girls…"

"Welcome to urban cultivation again huh,"Aera said dryly.

Just then, his interface glitched.

A new message appeared on his screen in red font.

> You have observed a hidden Karma War.

> You cannot unsee it.

> Fate thread updated.

> Main Path Preview: Spirit Integration - Activated

Ryuu stared at the screen.

"Spirit Integration?"

Aera's voice softened. "It's the next level, Ryuu. Tech and spirit… merging. But it only unlocks for those who've seen behind the curtain."

Through the cracks in the door, the sounds of battle were fading. Either the factions had stopped… or they were regrouping.

Ryuu clenched his fists.

"Then I guess I'm not a spectator anymore."

Inside the leyline relay room, silence fell — broken only by the gentle hum of dormant machines and the faint flicker of failing fluorescent lights.

Aera hovered nearby, her form stabilizing now that they were out of direct conflict. Her long holographic hair glowed faintly in the dark.

Ryuu leaned against an old server stack, watching his interface flicker.

> SYSTEM STATE: LOCKDOWN MODE

> SPIRIT INTEGRATION PATHWAY – PREVIEW UNLOCKED

> WARNING: KARMIC ANOMALY DETECTED IN USER'S FATE THREAD

He exhaled. "That's a lot of red warnings."

Aera nodded, crossing her arms. "You've crossed a line most people don't even know exists. Spirit-tech sects, karmic ley battles, cursed code… This city's wrapped in threads of war that blend spirit and data."

Ryuu looked down at his shaking hands. "That hacker wasn't human anymore. He was like… corrupted by his own code."

"Spirit cultivators who overuse cursed-tech lose their karmic balance," Aera explained. "The Onmyo Syndicate runs on stolen karma. And they want to harvest yours now."

He let the words sink in, eyes trailing to the metal door — behind it, a war brewed beneath Tokyo, hidden from surface life. "This was supposed to be just a reset. Another glitch world. I wasn't ready for all this."

Aera floated closer, her voice softening. "You're stronger than you think, Ryuu. But this world plays by urban cultivation rules. No more grinding slimes in fantasy forests."

She pulled up a spirit interface projection, displaying a tangled city map glowing with spiritual nodes and fractured leyline flows. Tiny sect logos blinked across Tokyo — Kanzaki symbols, Onmyo glyphs, a few others marked "unknown."

"This is the city's karmic infrastructure," she explained. "Hidden sects, balance networks, spirit energy relays… Every building, shrine, and billboard might be a node."

Ryuu's eyes widened. "They're all… fighting over Tokyo?"

"Each one thinks they're preserving balance. But in truth? They're bleeding the city dry."

She zoomed in on a flashing pulse. "This right here? This is you. Your presence just distorted three nearby energy threads."

"Because of what I saw?"

"Because of what you are.

You're an anomaly, Ryuu. A gacha-born glitch with an adaptive spirit core, synced to an AI system. They'll want to dissect you or control you — probably both."

Ryuu stood, fists clenched. "Then we need to power up. Fast."

Aera gave a grim smile. "That's where Spirit Integration comes in."

A second interface opened: a glowing skill tree, shimmering with both cybernetic and traditional qi symbols. "This is the next stage in cultivation — fusing your emotions, karma resonance, and tech interface."

He stared at the tree. "It looks… unstable."

"That's because it is," she said. "Integration requires mental clarity and emotional precision. If you're too angry, too scattered, or if your karma is overloaded…"

Ryuu finished her thought. "I crash. Or worse."

"You fragment."

A long silence.

Finally, Ryuu looked out the broken vent toward a distant tunnel light. "So what now?"

Aera projected one final message on his interface:

MAIN QUEST UPDATED:

> Survive the Karma War.

> Integrate Spirit and Code.

> Do NOT let the Syndicate track you again.

He took a deep breath, the weight of the mission settling in.

"Alright. No more running."

"Let's unlock the path."

Aera nodded. "Welcome to the gunshow."

The air was still thick with lingering spiritual static as the Onmyo Syndicate operatives withdrew into the shadows of the subway tunnel, their cursed-tech glyphs flickering erratically.

The firewall barrier Ryuu had used to escape had collapsed moments ago, leaving behind only residual heat and glitching sigils burned into the concrete.

But someone else remained.

Footsteps echoed—slow, deliberate, sharp against the old metal tracks.

Mayumi Kanzaki stepped out of the darkness beyond the junction, her white shoes untouched by dust, her school uniform spotless despite the carnage.

Her eyes, cold and radiant with latent karmic energy, scanned the scorched scene with a quiet intensity. Behind her, a faint golden circle rotated over her shoulder like a spiritual compass—Kanzaki Clan's Fate Mirror Sigil.

A disheveled Onmyo enforcer, masked and breathing heavily, flinched at her approach. "Kanzaki… You're not supposed to be—"

Mayumi raised her hand. Her fingers gleamed with spiritual threads as golden characters weaved through the air and locked his limbs in place.

"I'm not here for protocol," she said coolly. "I'm here for answers."

The enforcer grunted, trying to resist the Fate Lock Technique, but his spirit circuits had been strained from earlier combat. "You don't have authority here. This isn't a Kanzaki ward."

"This entire city is under karmic threat," she replied, eyes narrowing. "And you just broke two karmic seals with a level-four cursed incantation. That makes it my business."

The Onmyo agent's aura crackled in warning. "He's dangerous. You felt it too, didn't you? That boy—he carries an anomaly signature."

Mayumi didn't flinch. "I know. His thread tangled with mine the moment he entered the classroom."

A beat of silence.

"You've been watching him," the enforcer accused.

"I observe all threats," she said. "And I'm still deciding which side he belongs on."

The agent scoffed, then winced in pain as the sigil around him tightened. "He's a threat to karmic structure. Your clan used to understand that. Now you hesitate."

Mayumi stepped closer, her voice calm but edged with danger. "And your Syndicate used to wait before sending death squads after high schoolers."

The two glared at each other in the flickering light of a failing neon sign, half-submerged in digital distortion.

The enforcer spat blood. "You protect him now, but when his karma spirals out, don't act surprised when Tokyo burns."

Mayumi studied him for a moment longer, then waved her hand — the golden threads unraveled, dropping the man to his knees.

"You're bleeding karma by the second," she said as she turned to walk away. "Tell your masters: next time you act without balance, we won't just be observing."

As she vanished into the shadows, her Fate Mirror shimmered, flashing briefly with Ryuu's distorted spiritual signature.

Mayumi's thoughts were silent but firm:

"If you truly are the anomaly… then fate will bring us to war."

Ryuu stood alone on the rooftop of his apartment complex, wind tugging at his hoodie, the cityscape pulsing beneath him like a living, glitching organism.

Tokyo at night was never quiet — cars hummed, digital billboards blinked with infinite loops, and somewhere in the distance, a vending machine played eerie carnival music before abruptly stopping.

He exhaled slowly, still catching his breath from the chaos underground.

"Aera," he murmured. "Tell me this isn't normal anymore."

A flicker of light beside him — Aera's holographic form shimmered into view.

Her avatar had subtly updated again: now wearing a sleek, cyber-miko outfit, glowing circuit lines running along her sleeves.

"You want the good news or the high-pitched, terrifying reality?" she chirped, floating just above the railing.

Ryuu gave a dry laugh. "Let's do terrifying first."

Aera's tone dropped.

"You've officially triggered a Sector-Red Karma Surge. Multiple factions have now flagged you as an unknown anomaly. And one — the Onmyo Syndicate — has placed you under active surveillance."

He winced. "And the good news?"

She smiled. "You've qualified for Spirit Integration Pathway Unlock."

A glowing window opened in his vision:

SYSTEM UPDATE: Spirit Integration Pathway v1.0 Unlocked

– Techno-Spiritual Fusion Nodes: Active

– Emotional Karma Sync: In Progress…

– Data Cultivation Room Access: Pending

"I didn't even finish Neural Sync Stage One," Ryuu muttered. "Why is this happening so fast?"

"Because you broke the sequence. The Error Gate shortcut advanced your resonance. You're out of the tutorial now."

He looked out across the horizon. Above the skyscrapers, he could almost see it — thin threads of faint, glowing karma energy weaving through the city like spiderwebs.

Points where the air shimmered unnaturally, like something was being pulled between realities.

"Aera… how many people in Tokyo are like me?"

A beat.

"Not many," she admitted. "But they're watching. And they're moving."

Silence hung between them. Ryuu felt the weight of invisible eyes across the rooftops, like the city itself had become a massive, breathing dungeon.

He turned back to her. "Then let's move too."

She smiled, proud. "Welcome to the next level, Ryuu."

As the neon glow intensified around them, and the karmic threads became just a little more visible, Ryuu clenched his fists.

"If this city's a game board now… I'm not playing defensively anymore."

Alarms weren't just digital—they were spiritual.

As Ryuu stood in the middle of the decaying subway tunnel, crimson karma threads lit up like veins along the walls, pulsing with a low hum.

The air shimmered with cursed pressure. Behind him, masked Onmyo Syndicate cultivators emerged from shadowy alcoves, their robes glitching like corrupted sprites.

"Aera—!" Ryuu barked.

"Already on it!" she snapped, her avatar zipping across his HUD like a code sprite gone rogue. A shimmer rippled around him—then slammed outward in a wide dome of golden hexagonal tiles.

[FIREWALL BARRIER: INITIATED]

The attackers skidded back, their cursed talismans disintegrating as they touched the protective barrier.

"I hijacked a defunct metro server node and converted it into a temporary firewall," Aera explained breathlessly. "Won't last more than 60 seconds."

"Then we RUN!"

The floor beneath them shifted.

A train tunnel blinked into view ahead, overlaid with debug lines and spiritual glyphs—a half-real escape route rendered from system data and lingering karmic energy.

Ryuu launched forward, the firewall dome collapsing behind him with a thunderous snap.

As he sprinted through the liminal tunnel, the walls warped. Light strobed in glitchy pulses. Cursed talismans detonated like landmines, forcing him to slide and vault like a parkour ghost.

"More incoming!" Aera shouted. "They're warping reality around the junction nodes!"

A shadow clone surged from a broken tile—Ryuu ducked instinctively, Spirit Thread Dash activating without him consciously willing it.

He phased slightly, his body momentarily encoded into ghost-like data, slipping through the trap.

He landed and skidded under a low archway, panting.

"Spirit Integration Level One… syncing," Aera reported. "You've triggered adaptive reflex mode. You're evolving on the fly."

"I don't want to evolve into a corpse," Ryuu grunted.

Behind them, one of the masked attackers unleashed a cursed spirit-tech drone—its body a fusion of a paper shikigami and camera lens, shrieking as it pursued them.

"On your left!" Aera warned.

Ryuu pivoted mid-stride, raised his hand—and channelled.Not just his qi,not just data. Both.

A flicker of purple light formed a jagged sigil—a raw, unrefined ability.

[Spirit Pulse Disruptor: ACTIVATED]

The wave hit the drone like a hammer made of glitching static. It screeched, shuddered, then exploded into fragments of light and smoke.

Finally, a faint blue light appeared ahead—an exit node. Aera growled: "That's a reboot tunnel—GO!"

Ryuu dove forward, tumbled through—

—and landed flat on his back in a quiet, empty subway station, digital signage flickering dimly. The chase had ended.

But the war had just reached it's boiling point.

The lights in the abandoned subway station flickered above Ryuu like weak stars.

He lay there, gasping, the cold concrete against his back grounding him in reality. His body ached—not from injuries, but from shifts. Like every cell had just rewritten its programming.

Aera hovered above him, glowing faintly in system-blue. Her pixelated eyes scanned him up and down.

"Vitals stable. Neural Sync holding. But you pushed past your safety threshold, dummy."

"Yeah," Ryuu exhaled, "but it worked."

He sat up slowly, still catching his breath, glancing at the cracked floor tiles beneath him.

Faint glyphs glowed and pulsed underneath—a remnant of spiritual circuitry left behind by the barrier. The whole city had become a hidden warzone… and he'd just crossed the front line.

"Show me the battle data," Ryuu muttered.

Aera nodded. A neon interface unfolded before him in midair—combat logs, enemy spiritual signatures, unstable karma zones mapped across Tokyo.

One data stream glitched. Then another. Then they realigned.

[Analyzing... Compatibility Achieved.]

[Preview Unlocked: Spirit Integration Pathway]

A new window expanded before him—different from anything he'd seen.

At its center was a circular node: "Spirit Core: Unawakened."

Spreading from it were branching skill lines:

- Data-Weaving: encoding spiritual techniques with digital frameworks.

- Emotion-Resonance: power scaling based on emotional clarity and karmic alignment.

- Ghost Portals: short-range phasing through corrupted digital-etheric fields.

- Firewall Creation: spiritual-tech defense constructs.

It looked like a cultivation tree—except rewritten through the lens of code, karma, and circuitry.

"This is the path?" Ryuu asked.

Aera floated closer, her voice softer. "You've crossed into something new. Not just a cultivator. Not just a hacker. You're walking the Spirit Integration Pathway—a hybrid evolution."

Ryuu stared at the tree. So many paths. So many dangers.

"But what happens if I fail?" he asked.

Aera's glow dimmed. "Then the urban sects consume the city. The Onmyo Syndicate will rewrite karma with cursed code. And the Kanzaki Sect… will purge anything they can't control."

Ryuu clenched his fist.

"I thought coming back here would feel normal. That maybe Tokyo was just Tokyo. But this isn't the same city I left. It's infected. It's layered in hidden war, and I'm in the crossfire."

[Karma Divergence Level: 12%]

[Warning: Timeline Instability Detected]

He stood up, rolling his shoulders.

"Good," Ryuu said. "Then I'll learn how to rewrite the war."

Aera blinked. "Rewrite the—wait, that wasn't in my motivational response database…"

He smirked at her. "Guess you'll have to patch it in."

The screen blinked.

[System Update Queued: Custom Motivation Protocols – Ryuu Edition]

The Spirit Integration preview closed with a soft hum. But the knowledge remained, settling into his bones like code finding its host.

As he turned to leave the station, the spiritual residue faded behind him, like a phantom. And ahead—Tokyo shimmered in neon light, darker than ever… but now, it was a battlefield he could walk.

Shibuya Station was alive again.

The midnight crowd flowed above like nothing had happened—neon ads blinking, tourists laughing, delivery drones zipping past. It was a completely different world from the one Ryuu had just escaped.

He emerged from a forgotten stairwell, hoodie up, spirit qi still faintly humming under his skin.

His fingers trembled—not from fear, but from adjustment. His body was adapting to the Spirit Integration preview faster than expected.

No one noticed him. But his system did.

[Affection Level: Mayumi Kanzaki – 36%]

[Flag: Karma Collision Pending]

[Status: Hidden Spiritual Signature Active]

He exhaled through his teeth. "Yeah, thanks for the reminder."

Aera flickered into view at his side, arms crossed.

"We're officially in it now, partner. That wasn't just some turf scuffle. That was a karma war rehearsal."

Ryuu stared out across the Shibuya crosswalk. Underneath the bright lights and busy bodies… the city pulsed with threads of unseen energy.

Aera's voice lowered. "We're being watched. By at least three factions."

"I know."

He pulled out his phone. On the surface: Instagram, Spotify, messages.

Behind the veil: Cultivation Scan Mode.

Spiritual hotspots lit up all over the map—hospitals, shrines, arcades, vending machine alleys.

Tokyo was laced with karma fractures. Places people had poured emotion into… or where something had gone wrong.

He tapped one near his school.

[Fracture Detected – Class C]

[Mission Eligible: Spirit Walk – Cleanse Node]

He didn't activate it.

Not yet.

His gaze drifted up to the skyline. The memory of Mayumi's sharp eyes surfaced—how her spiritual aura seemed… coiled, restrained. She was no ordinary cultivator.

[NPC Update: Kanzaki, Mayumi]

[Status: Elite Disciplinary Candidate | Karma Intent: Unknown]

[Potential Romance Path: Diverging]

"What do you think her deal is?" he asked quietly.

Aera's tone was unreadable. "She could help you. Or end you. Or both."

Ryuu chuckled, though there was little humor in it.

"I've got to know. What side she's on. What side I'm on."

A breeze brushed his face, warm but heavy. The world had shifted. And no matter how hard he tried, he couldn't pretend he was just some kid anymore.

He wasn't even just a ordinary cultivator.

He was something in-between. Something evolving.

Ryuu looked at his reflection in a store window. His eyes had changed—not glowing, but sharper. More focused. Behind him, Aera hovered like a silent guardian.

"We're going to figure this out," he whispered.

Aera nodded once.

And for the first time, Ryuu didn't feel like he was running anymore.

He was hunting.

[New Objective Added: Investigate Sect Structures]

[Next Mission Unlocked: "Mission: Balance the Karma Tree"]

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