Disclaimer: I do not own One Piece or Naruto credits goes to Eiichiro Oda and Masashi Kishimoto respectively.
"Suiton: Fuuma Mizu Shuriken [Water Release: Evil Windmill Water Shuriken]"
The Jonin create a two solid large Fuuma Shuriken made of water and launches it towards Ren and Duy.
Light Destructo Disc
In retaliation, Ren creates two solid discs that spin at high speed and send it towards the two Shuriken.
SLICE! SLICE!
The two disc made of light slice through the Shuriken made of water and head towards the Jonin.
PUFF!
"Shadow Clone??" Duy said as the Jonin burst into smoke. Duy kept looking around only to hear a voice.
"Suiton: Kirigakure no Jutsu [Water Release: Hiding in Mist Technique]"
The Jonin suddenly appear and cast a Ninjutsu that fills the air with mist so thick.
"Ren this is bad, with this mist blocking our vision, we cannot know when and where that guy will attack" Duy said as he stood in front of Ren to protect him, completely forgetting that Ren killed Jonin not long ago.
"Suiton: Abura Bushin no Jutsu "Water Release: Oil Clone Technique]"
They suddenly heard the Jonin voice chanting another Ninjutsu. Both up their guard for sneak attack.
"Just clone? What is he planni-" Duy words is cut short as the Jonin suddenly appears in front of them and attacks Duy with kunai.
"Gōken [Ferocious Fist]"
Duy attack with his fist only for it to passthrough the Jonin's body.
"Hmmm?" Duy looks at Jonin in confusion and attacks again. "This... Is clearly just a clone... So why the hell wouldn't it disperse?" Duy said.
"Why are you surprised? It is just an illusion clone used for distraction" Ren looks puzzled at Duy, after all his laser beam passthrough Minato's clone just like Duy's attack passing through the Jonin's clone.
"No this is different..." Duy said with unsure expression as he watch the clone kept attacking him only for it to passthrough his body like a ghost.
"Let me see..." Ren points his palm at the Jonin and fires Light Blast.
BANG!
The moment the Light Blast touches the clone, it bursts into flame instead of passing through its body.
"Ahhhhh..."
Caught of guard, Duy who was close to the clone engulf in flame, not expecting the clone to burst into flame at all.
"Hachimon Tonkō: Kyūmon [Eight Gates Released: Gate of Healing]"
With that, the flame disperse. Although Gate of Healing did not heal the burnt on his body, as it only had re-energizing his body for rapid recovery from exhaustion, still sigh in relief.
"Duy, are you ok?"
"Yeah, I did not expect that at all..."
'Why would that Jonin waste his chakra on bunshin? Surely he has a plan...' Ren thought as he cup his chin 'Wait... The Jonin sees me fighting his comrade and clearly he see my sword producing heat that cuts his comrade sword.'
'Did that clone is actually for me? If i think about it, if i get close to the clone and slash it with my Light Sword, the clone would burst into flame engulfing both I and Duy' Ren narrow his eyes as he thought about it.
'Well, the Jonin clearly see me fire from a distance and fast enough, so why would he...' Ren frown. 'He knows that his plan would failed on me so his target from the start is...' Ren look at Duy whose top clothes are burned.
'As expected of an experience Ninja' Ren admire the Jonin's plan. 'However, Duy is strong enough not to die from sneak attack.' He smirks as another clone attacks but before it could close it burst into flame because Ren fired laser at the clone.
"Ren, don't you think the mist is getting thinner??" Duy ask while looking around.
"Hmmm?" Ren also looks and indeed it's getting thinner.
"The flame!"
"What?"
"Flame produces heat and because high temperatures can dissipate the mist"
"Oh, Nice one Ren! As expected of youth!" Duy said with a flashy smile.
'Damn, if not for Duy mentioning i woulda forget, I'm from 21st century for godsake' He thought as he shook his head.
'My Light produce heat, that means...' Ren smiled as he came up with an idea to remove this damn mist.
"Duy, step back i just wanna try something"
"Oh, sure"
Ren closed his eyes, his body keep glowing while the temperature around him constantly rising.
"Amazing" Duy said with a star in his eyes while looking at mist slowly fading away.
"What the hell??" The Jonin exclaims in shock as he looks at Ren's glowing body.
Ren opened his eyes and noticed Jonin standing not far away from him, with lots of clones around him.
'Is that clone the as before?' Ren pushes his hands forward.
"Light Fly"
Countless particles flew out of Ren's hand, like a firefly, towards the Jonin and clones.
BOOM! BOOM! BOOM!
Both the light particles and the clone explode into fire, creating a wildfire that destroys and burns the area.
"Hmph" the Jonin shunshin at Ren punch with all his might. Ren punches back with a glinting fist.
BANG!
"I would never lose to a youth" Duy said with confidence.
"Hachimon Tonkō: Keimon! [Eight Gates Released: Gate of Joy!]
"Ren steps back"
"Hmmm?" Ren raised an eyebrow at Duy's body with green aura but still stepped back and watched with interest.
"Asakujaku! [Morning Peacock!]"
Duy then jumps into the air in a distinctive stance and begins punching the enemy repeatedly. The punches are so fast, they are set ablaze by sheer speed and friction.
"Ahhhhhhh..."
The Jonin struggle evading so much fire raining down him and eventually got burned to death by countless fires.
'Amazing!' Ren looks amazed at Duy then 'If he could ablaze his punches by sheer speed and friction, what would happen if i, a Light Human, do that at the speed of light?'
"Ha~ Ha~ Mission done!" Duy pant for a while before flashing Ren his youthful smile and thumbs up.
•••
"I think that's enough rest" Ren stands up pat his butt and says to Duy.
"Alright"
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They travel quite far already and would continue on traveling if not for someone blocking their path.
"Uchiha Fumihiro, what are you doing here?" Duy asked with suspicion.
"Ah, the clan leader tasked me with a mission to eradicate a traitor" Fumihiro said in a teasing tone while smirking at Ren.
"Traitor? Who?"
While the two were talking, Ren looked at Fumihiro with anger and thought:
'This damn Uchiha is probably here to kill me'
"How could Ren, a kid, be a traitor? Do you have evidence?" Duy said as he walked in front.
"There was no need for evidence hehe..." Reply in a mocking tone before shunshin'ing behind Ren with a sword.
SWISH!
Ren was cut in half and dropped to the ground.
Thud!
"Ren!" Duy was shocked as he looked at Kaito Ren lying on the ground not moving at all.
"Haha, easy mission"
"Damn you... Ahhhh... Hachimon Tonkō: Kyōmon! [Eight Gates Released: Gate of Shock!]
"Hirudora! [Daytime Tiger!]"
After opening the seventh of the Eight Gates, Duy places a palm facing forward in front of his face with one hand and then taps it with his other hand, formed into a fist, which creates a massive amount of air pressure. Next, Duy forms a unique hand seal resembling a tiger, which launches the air pressure at Fumihiro in the shape of a tiger, by leaving a gigantic tiger-shaped impression into the initially built-up air pressure with the hand seal. The air pressure will condense as it's moving and be focused into a single point.
"Katon: Ryūen Hōka no Jutsu! [Fire Release: Dragon Flame Release Song Technique!]
An advanced version of Katon: Gōryūka no Jutsu (Fire Release: Great Dragon Fire Technique). Fumihiro expelled several dragon-headed fireballs from his mouth that head towards the grey tiger.
BANG!
The Grey Tiger, comparable to A-Rank Ninjutsu, and an A-Rank Fire Ninjutsu, created a huge explosion upon impact.
•••
While the two are busy fighting, Ren lower body jumps and his upper turns into light particles that towards his lower body.
Moments later, Ren is whole again and thought:
'Man, i let that Fumihiro guy to cut me in half so i can shock both of them, i didn't think Duy would react like that...' Helpless at his failed attempt, Ren turns serious and looks at Fumihiro with killing intent.
'Time to finish this shit'
Ren throw both of his arms open, hands held vertically and fingers wide while gathering light. Then Ren straightens his arms to the front, forming a sphere of light in the space between the palms of each hand that emits a star shaped light spinning rapidly and it's so bright that anyone other than Ren will be blind temporarily.
"So bright... Who is it?" Duy ask wanted to epen his eyes but can't due to light
'What is this dreadful feeling?' Fumihiro gulped as he thought fearfully.
Because of the light, Duy and Fumihiro stop their fighting to shield their eyes.
"Be gone! Uchiha Fumihiro"
Final Flash
Ren then teleports in front of Fumihiro and fires a massive light beam at point blank.
BLAST! (A/N: i didn't know how to make the final flash sound so i just went with that)
Fumihiro who has his eyes closed, didn't even know what him and died just like that.
After a while, Ren put his arms down to look at his Final Flash destruction with awe.
"What the fuck?" for the first time in Duy life he witnessed this kind of attack and used a vulgar word to express his astonishment.
Duy jaw drop at the endless scorching trail on the ground created by Ren's attack.
Swish! Swish! Swish!
"We are Konoha Anbu, address yourselves" One the person steps forward and questions them with a cold voice.
"I am Might Duy"
"I am Kaito Ren"
Both then throw their head bond to the Anbu to inspect. After confirming that they are indeed Konoha's Ninja he throws the head bond back at the two.
"Kaito Ren? As in the genius kid who kill a Jonin?"
"Yes that's me"
"Oh and you are the Eternal Genin?" The leader of this team asks Duy coldly.
"Ye - Yes it's me" Duy stutter, embarrass at his title being mentioned in front of Ren.
"Hmph" The leader harrumps and turns to Ren and says: "The village prioritizes a genius with huge potential please be more careful at choosing your teammate".
"I know what I'm doing, thanks"
"Hmph i already remind you! Tell me what happened" The Anbu Leader demands the answer.
Ren then proceeded to tell while they were hoppings from tree to tree.
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