As the blue flames curled around my body, the azure glow spreading across my arms and torso like living fire, Mikoto's eyes widened in genuine shock. Her Sharingan tomoe spun faster for a second before slowing, the red glow reflecting off the flickering blue light as she took an involuntary half-step back. Her short blade dipped slightly, her guard wavering for just a heartbeat before she caught herself. She looked worried, the confident edge in her expression cracking for the first time since the spar began. The playful energy from our academy days had evaporated completely, replaced by something more cautious, more calculating. She was reassessing me, and I could see her mind working behind those crimson eyes.
What is this? Kekkei genkai? Blue flames that don't burn the ground but feel like they're pulling at my chakra even from here… This isn't normal fire release. I've studied every fire technique in the Uchiha archives, and nothing matches this. The way the flames move—they're not just burning, they're reaching. Hungry. If those flames can absorb chakra the way they look like they're doing, then every jutsu I throw at him might just feed him more power. He'd turn my own attacks into fuel for his fire. That's not just dangerous. That's a hard counter to almost everything I can do. I can't afford to be reckless here.
Kira stood frozen on the sidelines, her pale Hyuga eyes locked on the scene with open shock. The usual blank mask on her face had slipped completely; her mouth was slightly parted, one hand unconsciously gripping the edge of her vest as she stared, knuckles white against the fabric. Her breathing had stopped for a moment, like she'd forgotten how. She had never seen anything like it — the way the flames moved with purpose, almost alive, wrapping around Ryusei without scorching him. The blue light reflected in her lavender eyes, casting strange shadows across her sharp features.
Impossible. Those flames are moving like they have intent. They're not just chakra construct—they're responding to him, anticipating his needs. The Hyuga have records of every known kekkei genkai in the Elemental Nations, and this isn't in any of them. Blue fire that doesn't burn the user? That can absorb other chakra? He should be screaming from the heat alone, but he looks comfortable. Even calm. What else is he hiding behind that unassuming face?
Her mind raced, comparing it to everything she knew about bloodlines, but nothing matched. The cold, composed branch member looked rattled, her posture stiffening as she processed the sight. Her Byakugan itched to activate, to see inside his chakra network, to understand what was happening beneath his skin. But that would be a violation of the spar's rules, an admission that she couldn't read him with her normal senses. So she stood frozen, watching, waiting, her pale eyes tracking every flicker of the azure flames.
Sakumo watched with calm interest, arms crossed over his chest, his weight shifted casually onto one leg like he was watching a morning training exercise rather than a battle between two of Konoha's rising stars. He had already been briefed by the Hokage about Ryusei's new ability, so the visual didn't catch him completely off guard, but even he had to admit the aesthetics were cool. The blue flames had a haunting, almost ethereal beauty to them, like fox fire from old legends brought to life, the kind of thing you'd hear about in campfire stories told to scare children.
So this is what the Third was talking about. The boy's flames look like they have a mind of their own. Not just destructive — they feel like they're feeding on energy. Every time Mikoto's lightning touches that fire, the flames grow brighter, hotter, more intense. If he can control that properly, he'll be a nightmare in prolonged fights. Imagine him on a battlefield, absorbing enemy jutsu and growing stronger with every attack thrown his way. The kid would be unstoppable once he got going. Still, he's holding back the lethality. Those flames could have consumed her lightning and then kept going, but he's keeping them contained, controlled. Smart. He's got discipline under all that trickster energy. The Third was right about him.
He uncrossed one arm to scratch his chin thoughtfully, the movement casual, almost bored-looking, but his eyes never left the azure glow. He was cataloging everything—the way the flames responded to Ryusei's breathing, the subtle shifts in their intensity based on his emotional state, the way they seemed to reach for Mikoto's lightning like a plant reaching for sunlight.
I kept the flames controlled, making sure they didn't actually burn anything around us, just hovered and pulsed with that hungry blue light. It took concentration—more than I wanted to admit—to keep them from spreading, from consuming the grass and trees and everything else in range. The youki wanted to expand, to devour, to grow, and every second I held it back was a battle of its own. But I couldn't afford to show weakness here, couldn't afford to let them see how much effort this actually took.
Ryusei:It doesn't matter
I said, voice steady as I met Mikoto's gaze.
Ryusei:It doesn't change the fact you're gonna lose.
She didn't reply with words. Instead she charged again, short blade crackling with fresh lightning as she closed the distance. The electricity arced from her weapon in sharp, angry bursts, lighting up her face in harsh white flashes that made her Sharingan stand out even more. Her expression had shifted from shock to determination, the worry still there but buried beneath layers of Uchiha pride and combat focus. She wasn't going to let a flashy light show intimidate her.
We clashed once more, our weapons meeting in a shower of sparks and blue-white light. I swung both kunai in tight arcs, trying to keep her on the defensive while the flames around me licked at the air, absorbing stray sparks of her lightning every time our blades connected. Each impact sent small jolts up my arms, but the blue fire seemed to dull the pain, feeding me a steady trickle of energy that kept me moving even as my muscles screamed for rest. It was like having a second wind that never ran out, a constant recharge that turned exhaustion into fuel.
The numbness in my arms was still there from earlier, a dull ache that throbbed with every heartbeat, but the blue fire helped. Every time her lightning touched my flames, I felt a warm rush spread through my body, the stolen chakra flowing into my reserves and easing the burn in my muscles. It wasn't healing—not exactly—but it was sustaining, keeping me going when I should have been slowing down.
Mikoto pressed hard, her Sharingan reading my movements with terrifying accuracy. She feinted left, then struck right with a lightning-infused thrust that I barely turned aside with one kunai, the blade passing close enough to my ribs that I felt the heat of the electricity through my vest. The moment our blades locked she twisted her wrist, trying to disarm me, but I used the momentum to spin into a low sweep with my leg, my foot cutting through the air toward her ankles.
She leaped over it gracefully, her body coiling in mid-air like a cat, and came down with an overhead slash that forced me to cross both kunai above my head to block. The impact rang out loud enough to echo off the trees, the blue flames flaring brighter as they drank in the lightning running along her blade. The stolen energy surged through me, warm and electric, making my hair stand on end for a moment.
She couldn't hide her shock this time. Her voice came out sharper than she probably intended, the confidence from earlier cracking as she felt her lightning get pulled into the fire instead of shocking me.
Mikoto: My jutsus… those flames are absorbing them?
"Yup," I grinned, pushing her blade back and creating space with a quick burst of wind chakra from my feet. The gust kicked up dirt and grass clippings, forcing her to shield her eyes for just a moment.
Ryusei:This is my kekkei genkai — spirit flames. They can burn anything and absorb chakra. Pretty handy, right?
She didn't answer. Instead she wove more hand seals, her fingers blurring through the motions so fast they were almost invisible. Dragon, Tiger, Snake, Boar—the sequence was different this time, more complex, the chakra building in her chest like a storm gathering strength. Lightning crackled louder around her, arcs of electricity jumping from her body to the ground, scorching the earth in small circles around her feet. The air pressure dropped, the way it does before a thunderstorm, and I could feel the static electricity raising the hair on my arms.
She unleashed another powerful Lightning Release technique, this one a wide arc of electricity that swept across the ground like a storm front, tearing up the earth as it traveled. The wave was massive, at least fifteen feet wide, and it came at me with the force of a natural disaster, bolts of lightning branching off from the main current and striking everything in their path.
I met it head-on, planting my feet and letting the blue flames surge forward to swallow the lightning whole. The fire roared out from my body in a wave of its own, azure and hungry, meeting the white electricity in the middle of the clearing. The clash created a brilliant explosion of blue and white light, the absorbed energy making my flames burn hotter and spread faster, forcing Mikoto to dodge sideways to avoid getting caught in the expanding blaze. She rolled across the grass, coming up in a crouch with her short blade ready, her eyes wide as she watched her lightning technique get consumed like kindling.
We kept moving, the fight turning into a chaotic dance across the training ground. I summoned two more clones mid-stride, the hand seals barely a flicker, both of them charging in with wind-enhanced kunai strikes while I flickered behind her. The clones came at her from opposite angles, their blades humming with compressed air, forcing her to choose which to block first.
Mikoto spun, cutting one clone down instantly with her short blade, the lightning along its edge making the clone's smoke sizzle and pop as it dissipated. The second clone managed to land a grazing hit on her sleeve before she destroyed it, the wind chakra tearing a small strip of fabric from her arm. She grunted, more from surprise than pain, and spun to face me as I appeared behind her.
The blue flames on my real body flared again, pulling in the stray chakra from the destroyed clones and giving me a fresh burst of stamina. I could feel the energy flowing into me, warm and revitalizing, easing the ache in my joints and sharpening my focus.
She was breathing harder now, her ponytail starting to come loose as strands of hair stuck to her sweat-damp face. A lock of dark hair had fallen across her forehead, and she didn't bother to push it back, too focused on tracking my movements. Her Sharingan was still spinning, still reading me, but there was something different in her expression now—not fear, exactly, but respect. The kind of respect you give to someone who's proven they belong in your weight class.
Mikoto: You're full of surprises today, Ryusei.
Her voice was low but carried a hint of admiration mixed with frustration, the words coming out between breaths.
I didn't let up. I flickered in close again, switching to a more aggressive taijutsu combo — Dynamic Entry followed immediately by Konoha Whirlwind, my leg whipping around in a powerful spinning kick that cut through the air like a scythe. The first strike caught her off guard, my foot slamming into her forearm as she raised it to block. The impact jarred her, pushed her back a step, and I followed through without hesitation.
She ducked under the second kick, her body dropping low, and countered with a lightning palm strike aimed at my ribs. I twisted at the last second, the strike grazing my side instead of hitting square, but the electricity still made my muscles spasm for a split second. Pain flared along my ribs, sharp and hot, but the blue flames absorbed most of the shock, turning the agony into a warm rush of stolen energy that I immediately fed back into my next attack.
I drove forward with a knee strike, forcing her to block with both arms, then followed up with a quick elbow to her guard. She absorbed the hits, her Sharingan tracking every movement, and countered with a slash of her short blade that I barely dodged, the steel passing close enough to my face that I felt the wind of its passing.
We traded blows like that for what felt like minutes but was probably only seconds — kunai against short blade, fire against lightning, clones popping in and out to create openings or take hits meant for me. The ground beneath us was torn up, patches of grass scorched black or frozen from stray lightning, the air thick with the smell of ozone and burning chakra. Every time our weapons met, sparks flew in all directions, some blue, some white, some orange where the fire and lightning mixed.
Mikoto was fully in it now, her Sharingan spinning at max speed, predicting my moves almost before I made them. She was fighting at a level I hadn't seen from her before, her body moving with a fluid grace that made her look like she was dancing rather than fighting. But the spirit flames kept leveling the playing field by eating her lightning every time it got too close, turning her greatest advantage into fuel for my fire.
I could feel the fight building toward a climax. The energy in the clearing was electric, charged, the air itself seeming to vibrate with the intensity of our clash. Both of us were breathing heavy, sweat flying with every sharp movement, our clothes torn and dirt-stained from the constant motion. Neither of us wanted to be the first to back off, to show weakness, to admit that we couldn't go any further.
Mikoto suddenly leaped high into the air, her body soaring upward with the help of a chakra burst from her feet. She hung there for a moment, silhouetted against the morning sun, her blade raised for what looked like a finishing overhead strike. Lightning coiled around the steel like a living serpent, arcs of electricity wrapping around the blade in tight spirals, building in intensity with every passing second. The air around her crackled and popped, static electricity making her hair float around her face like a dark halo.
I jumped to meet her, pushing off the ground with everything I had, my legs screaming from the effort. My fists clenched, knuckles white, blue flames roaring brighter around my arms as I prepared to end this with a solid punch straight to her guard. The fire gathered around my right hand, condensing into a dense sphere of azure energy, the youki and chakra mixing in a way I hadn't dared to attempt before.
We met in mid-air, fists and blade raised for the final clash, the space between us crackling with so much energy that the air itself seemed to warp. I could see my reflection in her Sharingan, could see the blue flames burning in her crimson eyes, could see the moment she committed to the strike.
And then Sakumo was there.
He moved so casually it almost looked lazy, like he was strolling through a park rather than inserting himself between two shinobi about to exchange killing blows. His hands shot up and grabbed both of ours mid-strike, his fingers closing around my fist and Mikoto's wrist with equal ease. His grip was firm but not painful, the White Fang's strength on full display without any showy flair. No dramatic flare of chakra, no shouted technique name—just the quiet, absolute confidence of a man who had ended more battles than most shinobi had ever fought.
The fight stopped dead. My blue flames flickered once, twice, then faded back into my skin as the tension drained out of me. Mikoto's lightning crackled and died, the electricity dissipating into the air like morning mist. The energy that had been building between us evaporated, leaving nothing but the sound of our heavy breathing and the distant chirping of birds that had finally decided it was safe to return.
Sakumo held us suspended for a moment, his eyes moving between us, that easy smile back on his face like nothing had happened. He looked completely unbothered, like catching two special jonin mid-attack was just another Tuesday for him.
Sakumo: The fight is over.
His voice was calm, carrying that gentle politeness even now as he lowered us back to the ground. Our feet touched the scorched grass at the same time, and he released our hands with a small nod, stepping back to give us space.
I looked at Mikoto. She looked at me. Both of us were breathing hard, sweat dripping down our faces, our clothes torn and dirt-stained. But there was something different in her expression now—something that hadn't been there when we started. Respect. Genuine respect, mixed with a healthy dose of wariness.
She had seen what I could do. And she knew, just like I knew, that if Sakumo hadn't stepped in, neither of us knew how that final clash would have ended.