Obito continuously spewed out massive flames, then began to control them, splitting the fire into three parts and directing it towards the two Kakashis from the front, left, and right.
The shuriken shot by Kakashi was also blocked by Obito with the controlled flames.
"Yang Seal: Release!"
Kakashi drew the Enma from his back, focusing the Breath of Thunder into the Breath of Thunder Chakra Mode, then released the Yang Seal.
The lightning mark on Kakashi's forehead shone brightly as a large amount of chakra surged from the seal, pushing the enhancement of the Breath of Thunder to its limit.
Fizz!!
The powerful Lightning Attribute Chakra made arcs of electricity flicker around Kakashi.
"Flash!"
Kakashi gripped Enma tightly, bursting forth with chakra that turned into a bolt of lightning, slashing through the flames and charging forward.
The Shadow Clone, lacking the strength of the original, ultimately dissipated under the siege of the triple fire assault.
"Fire Release: Impatiens Fire Jutsu!"
Unrelenting, Obito continued to gather chakra, spewing numerous fireballs at Kakashi.
"Lighting Release: Pseudo-Darkness!"
But Kakashi, not willing to be outdone, spat out a sharp Thunder Spear, exploding the incoming fireballs while still retaining enough power to shoot towards Obito.
Fighting Obito, Kakashi was not planning to use the Thoughtless Slash, which consumed a lot, because Obito's Void Kamui would easily make it so that the slash would hit only thin air.
Whoosh!
Obito's chakra burst forth, flashing towards the front side, dodging the attack and closing the distance with Kakashi.
Theoretically, he should stay away from Kakashi, this explosive ninja, but times have changed.
His Mangekyo Sharingan could see through Kakashi's movements, and his Void Kamui could perfectly evade Kakashi's powerful slashes.
Since that's the case, why not engage Kakashi in a close combat fight for style points?
"Fire Release: Flame Fist!"
Obito gathered a large amount of Fire Attribute Chakra into his fist, charging fiercely at Kakashi.
Under the strengthening of the Breath of Flame Chakra Mode, and with a large amount of chakra, just a swing of Obito's fist produced a gust of wind.
As flames ignited on his fist, the air around it distorted due to the high temperature, highlighting the uniqueness of this punch.
"Flash: Divine Speed!"
Kakashi tightly gripped Enma, sliding his left foot forward and his right foot back in a sprint stance, then triggered a massive amount of Lightning Attribute Chakra to intensify his body.
Whoosh!
Crash!!
A thunderous boom, like a falling thunderbolt, echoed as Kakashi suddenly rushed out.
His silhouette was like a golden lightning bolt, leaving a dazzling trail across the forest.
"So fast!" Yamato's eyes widened, trying to capture Kakashi's body but finding himself completely unable to.
Kakashi was way too quick! Yamato could only see a trace of golden afterimage flickering in the air.
But in Obito's Mangekyo Sharingan, Kakashi's movements remained traceable.
He maintained his punching posture, not using the Instant Body Jutsu to dodge, seemingly intent on facing Kakashi head-on.
Whoosh!
As Kakashi closed in, his speed suddenly upgraded another level.
Before Obito's fist could strike Kakashi, the blade, flickering with electrical arcs, sliced through the air towards Obito's body.
The blade seemed to hit a phantom, encountering no resistance, passing directly through Obito's body, and continued to slash aside.
Boom!
Obito's flame fist struck Kakashi's body, covered by Armament.
Fizz!!
Crackle!!
A sudden burst of powerful lightning erupted from Kakashi's body, spreading around, yet still passing through Obito as if hitting a phantom.
"Haha, Kakashi, you really are up to no good!" Obito laughed wildly inside.
He immediately activated Void Kamui, a mere 0.1 seconds after his fist hit Kakashi.
Kakashi knew about Kamui's intel, meaning unrestrained slashes were pointless against Kamui, and since Kakashi had entered the Breath of Thunder Chakra Mode, his counter-attacks were not hard to guess.
Kakashi frowned slightly, darting away.
Originally, he thought that relying on the Transparent World plus Armament defense would let Obito fail to gain any advantage, but he underestimated Obito's speed in activating Void Kamui.
"It's getting harder to fight." Kakashi quickly thought of a strategy.
The recent Lighting Release played a crucial role.
If the lightning had hit Obito, his body would surely have been paralyzed to some extent, affecting his speed and making it easier for Kakashi to catch Obito's weaknesses.
Now, with Lightning Release missing, Kakashi's combat plan was disrupted.
"Fire Release: Impatiens Fire Jutsu!"
Obito canceled the Void Kamui, gathered chakra, and spat small fireballs at Kakashi.
In the Breath of Thunder Chakra Mode, Kakashi was too fast; using broad-range Fire Release may not hit him, so it was better to use a Fire Release Ninjutsu like Impatiens Fire Jutsu that had a high attack frequency.
At least it would make it harder for Kakashi to dodge easily.
Bang!
As Kakashi ran, he threw a special smoke bullet.
Supply and demand create a market; specially crafted smoke bullets could not be seen through by Dojutsu Kekkeigenkai, acting as a visual impediment.
"Here we go again." Obito, seeing Kakashi disappear from view, became vigilant.
Before Obito could think much more, two Kakashis burst from the smoke together.
"Susanoo!"
Playing it safe, Obito directly unleashed chakra, summoning a simplified skeletal Susanoo, with only a few ribs and a thick arm.
Obito spat out Fire Release while controlling the arm of the skeletal Susanoo to attack.
Fizz!!
The two Kakashis quickly couldn't withstand Obito's full power, dissipating, then turning into lightning striking towards Obito, yet blocked mostly by Susanoo's ribs, with only a small wisp of lightning hitting Obito.
As a Lighting Clone was about to disappear, turning into lightning, it flung a regular kunai at Obito. Before Obito could react, the kunai transformed into Kakashi, fiercely swinging Enma, coated with electricity, toward Obito.
Crack!
The dazzling Thunder Slash struck Susanoo's rib, instantly causing a crack and then shattering it.
But to Kakashi's regret, his Enma still seemed to hit a phantom, passing through Obito's body.
This was his backup plan.
Lighting Clone was a ninjutsu that Kakashi hadn't used against Obito before.
Unlike regular Shadow Clones, Lighting Clones had a special effect: when they dissipated, they turned into lightning, attacking the enemy to cause paralysis.
Kakashi intended for the clone to paralyze Obito, then for the original to seize the opportunity to attack.
However, he didn't expect that Obito would use Susanoo in this situation, resulting in the Lighting Clone failing to fulfill its role.
Boom!
Obito's heavy fist struck Kakashi again.
Even with Armament defense, Kakashi still retreated several steps.
He had to allocate most of his chakra to attacks, so the Armament defense wasn't very strong.
This punch, while not rendering Kakashi powerless, essentially set the stage for victory.
With his chakra substantially depleted and injured, how could Kakashi engage in prolonged combat with Obito? In such a situation, Kakashi quickly fell under Obito's punches.
"Obito wins!" Mokgetsu announced the battle's result.
Obito restrained his desire to laugh out loud but couldn't stop the corner of his mouth from lifting.
Despite his efforts to internally tell himself that keeping his composure would look more stylish post-victory, and that too much joy would seem as though he'd never won before, Obito's face uncontrollably broke into an immensely joyful smile.
There was nothing to be done, he had won; he was first in the ranking battle.
And he had achieved this by defeating Kakashi, all in front of Nohara Rin, which was an additional source of joy.
As the years passed, from Shisui dominating to a time where different talents shone, and then Might Guy taking the lead, it was finally Uchiha Obito's turn to sit atop the throne.
From today onward, Mokgetsu's strongest disciple was Uchiha Obito!