Naruto: We are invincible

"Yeah! Naruto-kun is burning with the flame of youth!" Rock Lee shouted.

"Yes, Lee! In order to maintain our own flame of youth, we have to run 1000 laps around Konoha!" said Kai.

"Teacher Akai!"

“Xiao Li!”

"Teacher Akai!"

“Xiao Li!”

"Oh, come on, stop it, both of you," Tenten said, throwing kunai and shurikens at them.

The two continued to charge at each other, and Naruto caught Sasuke's chin with a right hook. Before Sasuke could counterattack, Naruto dodged and punched him in the ribs again, causing Sasuke to wince in pain.

Sasuke didn't want to be pushed around by someone like Naruto, he refused to give up or fall. He charged at Naruto again, but the result was the same. Sasuke threw a punch, but Naruto dodged at the last moment and hit Sasuke in the back with his elbow, causing Sasuke to lose balance and fall to the ground.

"Shadow Clone Technique!" Naruto shouted, and a clone suddenly appeared. The two shadow clones stood side by side and shouted out their techniques at the same time.

"Wind Style: Divine Whirlpool!" Naruto's shadow clone shouted, and created a vortex of wind in front of himself, which exploded towards Sasuke.

"Fire Style: Dragon Fire Jutsu!" Naruto shouted again, releasing a stream of fire combined with a wind vortex.

"Wind and Fire Combined Technique: Holy Flame Vortex!" they both said at the same time. A huge vortex of flames quickly burned towards Sasuke. Sasuke quickly dodged to the side, but his right arm was still burned. The vortex continued to drill forward, leaving a big hole in the wall of the arena.

"That's enough," Sasuke said, activating his curse seal. The moment the seal was activated, he felt a surge of chakra, strength, and speed. When the black mark began to spread on his skin, covering almost his entire body, he felt as if he could fight the whole world.

"With this power, I will grind you into powder." Sasuke laughed crazily, like a madman.

Naruto warned, "I told you not to use that power. It will eat away your sanity and turn you into a madman driven only by rage."

Sasuke rushed over as fast as he could. Just as Sasuke was about to kick Naruto, Naruto's body began to glow.

There was a bang.

Naruto's clone exploded and Sasuke was blown away.

But because of the curse he was unharmed.

'I should have known he would use a variation of that Shadow Clone,' Sasuke thought, angry at himself for not thinking of it sooner.

"Lightning Style: Lightning Pillar!" Naruto quickly made hand seals, and as soon as he finished speaking, a dazzling light came out of his hands, making Sasuke's eyes go dark, but he remained motionless, his eyes fixed on Naruto.

Not long after, Sasuke quickly increased his chakra and broke the illusion in an instant.

“Illusions don’t work on me.”

"It's his curse seal, Naruto." The Nine-Tails interrupted Naruto's thoughts, "The curse seal makes his chakra fluctuate constantly. Only a very powerful illusion can affect him." The Nine-Tails explained and Naruto nodded.

“Then let’s try this.”

"Illusion: Darkness Walking Technique!" After Naruto shouted, Sasuke's world was completely dark. He found himself in a dark place, unable to even see his own hands. This kind of complete darkness is what all eye technique users fear the most.

"Release!" Sasuke yelled, but it didn't work. Sasuke tried again, but failed again.

Sasuke was enraged, using up all his chakra, and the curse seal glowed brightly.

The third time, Sasuke released a burst of chakra, cracks appeared on the floor, and the illusion was finally broken. After releasing such a huge amount of chakra, Sasuke was out of breath.

"You're right, Kyuubi. He even broke an A-level illusion." Naruto said to Kyuubi. After all, the ability given by the snake is still useful.

"I told you, illusions don't work on me." Sasuke looked at Naruto with a smug smile on his face, swallowed a soldier pill and restored some chakra.

Naruto raised his right arm to face Sasuke who looked confused.

Naruto smiled and said:

"Eight Trigrams Palm." Naruto gathered chakra into his arms and sent a palm strike towards Sasuke.

Before Sasuke could react, he was hit in the chest.

Naruto's unexpected attack broke Sasuke's ribs and made him cough up blood, but that didn't mean he would give in. He poured more chakra into the curse seal.

Sasuke disappeared in an instant and appeared in front of Naruto the next moment. Sasuke kicked Naruto in the chest, however, he was surprised when the kick was blocked. Sasuke saw Naruto smiling and forming a blue chakra shield.

"Kaiten" - Naruto said as he spun, blocking Sasuke's kick and knocking him against the wall again. Sasuke should have been wary after seeing Naruto use the empty palm, but it was clear that his arrogance was beyond redemption.

"Enough!" - Sasuke roared, and tried his best to inject chakra into the curse seal on his body so that the seal completely covered his body.

Sasuke rushed towards Naruto. Naruto's eyes widened and he raised his hand just in time to block the punch that was aimed at his face.

"...He's getting fast. I might need to release my gravity seal... or "- Naruto thought as he dodged another swift kick from Sasuke.

"Chidori Ryu" - Naruto shouted, his body was surrounded by electricity, and the lightning was flying. As soon as Naruto released the lightning escape technique, Sasuke was electrocuted and flew backwards, his body twitching.

"How can you be so strong, Naruto?" Sasuke finally realized that the guy in front of him, whom he once looked down upon, was not as weak as he expected.

"You're not even from the Uchiha clan," Sasuke said.

"Luckily I'm not," Naruto replied quickly.

"What?" Sasuke asked confused.

"I awakened my Sharingan when I was five. I'm glad I didn't join the Uchiha or I'd probably be dead by now."

"Then help me." Sasuke put aside his pride. He had never asked for help from anyone...