Izuna said, "Let's see how you deal with this: SENPO: JIGOKU NO HI NO DANNO!(SAGE ART: HELL FIRE DRAGON)"
Mito was more surprised than ever. Naruto stood stead fast in the face of hell fire. Hell fire was an enhancement of Amaterasu, and it had been wielded by only Izuna and no one else till date. Naruto put his blade in front of it and screamed, "AMATERASU" and pumped all the chakra he could into amaterasu and channeled it down to his sword.
His blade did the rest of the work for him. However, Hell fire outdid amaterasu. Naruto's eyes widened as the Hell fire consumed his amaterasu and grew in both power and size. He was engulfed in it. The only reason he even survived it was because he was in sage of six paths mode.
Naruto put his hands on the ground and hundreds of roots came out near Izuna who jumped in the air and shot another round of hell fire at Naruto who created a absorption seal which sucked it and he sent it towards Izuna. Izuna smashed it apart and absorbed all of it and made a Rasengan out of it which could easily best any bijuu damma. He shot it at Naruto. Naruto stabbed it with his sword. Unfortunately instead of getting absorbed, it dissipated into many small glowing balls of power.
Naruto conjured many kage bunshin who all used Mokuton to elongate their arms into wooden bars and caught Izuna with it. Izuna just brought his arms down to the ground, breaking not only all the vats he was caught with but also the ground killing all of Naruto's kage bunshin. He then used bansho tein to bring Naruto to his arms. He then threw Naruto like a rag doll. Just as Izuna was about to launch another attack, the Naruto in front of him blasted off in smoke. All of a sudden, a long sword stabbed his left arm. The original Naruto landed in front of him. He was in his sage of six paths mode. His truth seeking orbs launched into Izuna. Izuna didn't even go into sage mode. He just lifted his hand to block them. They hit him but he was left without even a scratch on his face. Naruto attacked Izuna with a whole load of varieties of the rasen shuriken. It just pushed Izuna back a few metres. Naruto stood on the ground and channeled chakra to his feet to stay in the same place. He pumped loads of chakra into his arms some of which were also mokuton, amaterasu, raiton and the rest were sage chakra. He punched Izuna with both his arms and Izuna was pushed back only a foot our two this time.
Naruto tried to retrieve his sword but Izuna punched him away. He then took out the blade pricing his left arm. He threw it at Naruto. He then unleashed a jet of hell fire at Naruto. Naruto summoned one off his truth seeker orbs converting them into a shield to protect himself. He then braced for the flame. All of this in a few milliseconds. Upon being hit by the flame, he was pushed back with a constant force. To maintain a distance, Naruto sidestepped the jet of hell flames and crossed the distance between him and his father in a millisecond. Just as Izuna was about to punch Naruto, Naruto jumped up and stopped in Izuna's hand with the same mixture if chakra in his feet as he had " his hands for punching Izuna. He then punched Izuna in the face with the same chakra mixture while keeping his leg rooted on Izuna's hand. Izuna twisted his face as he recovered from the punch. A tiny drop of blood came out of a small cut on his face.
Izuna smiled upon noticing that. He threw Naruto down using brute force. He then punched Naruto in the face when Naruto tried to get up. Izuna took Naruto's throat in his hand and lifted him up. He then used Shinra tensei to throw Naruto away yet again.
Izuna came down on him instantaneously. Naruto shot amaterasu from his hand. Izuna just blocked the flames using his left hand. Naruto then started using both the hands. It didn't matter to Izuna who effortlessly blocked them off. Izuna came at him and tried to punch Naruto using his right hand. Naruto blocked it with both his hands. Izuna put Naruto's hands away and tried to hit him again. Naruto used both his hands. He then left his left hand which was in possession of his blade to stab Izuna with the same. Izuna side stepped and caught Naruto's arm and dropped the blade on the then punched Naruto in the gut. Naruto fell backwards. Naruto tried to get up but was punched in the face mid way.
Mito tried to attack Izuna as well but she too was destroyed by him. Naruto got up and used amenotejikara to get a good distance away from Izuna. Both of them were very exhausted. Naruto had nearly used up all of his chakra. He had very little left. Mito though in a better condition than him, was in no condition to fight Izuna our anyone for that matter. Naruto shifted the both of them to his kamui. They were stumped. They'd known Izuna was strong but they had never known how strong he was. He was kicking their assess effortlessly even when he was not in sage of six paths mode. They shivered at the thought of having to fight him when he was in sage of six paths mode. To top that off, Naruto and Mito were supposedly far stronger as your average kage according to Izuna. This meant Izuna was easily a God level shinobi or at least an SSS rank shinobi.
Naruto didn't have enough chakra to access sage of six paths mode so he sat down to meditate. Mito chose to rest until Izuna arrived.
Naruto sat down to think about the day's battle. What troubled him most was just how less effort Izuna put into battling the two of them. All of their hard work and they were able to draw just one drop of blood. They themselves had many bruises and cuts throughout their body and even that was because Izuna was using nothing but his bare hands and they were not even coated with chakra. Had anyone else been on the receiving end of Naruto's attack, they would have been utterly destroyed, bloodied and mutilated. Izuna had been using just a negligible portion of his chakra in all their previous battles which used been close calls. He had beaten Izuna only once when Naruto had been seven. He now laughed at that as he now knew that had Izuna actually fought at his finest, he would have lesser than one in a trillion trillion chance. Naruto had noticed a slight drain on Izuna's chakra today. A drain of lesser than one percent, but more than all that he had lost in all their previous battles put together.
Naruto thought about how Izuna's hell fire consumed his amaterasu as though it was a dragon consuming a grain of rice. Naruto wanted to learn that as quickly as possible.
As soon as he was done amassing chakra he got up and ventured into sage of six paths mode. He went to Mito who was still amassing chakra. He told her, "We need to do something. This battle has gone on for long enough. We need to end this soon."
Mito asked, "What do you intend to do? He's to powerful. He could even throw a moon at us without breaking a sweat. We have been utterly underestimating ourselves. He never fell for a thing. Even after giving our best, so we got was a drop of blood."
Naruto said, "I know. We need to make this a battle of the mind and not a battle of the body. We stand a chance there."
Mito said, "Your father would nevertheless overwhelm us with brute force."
"That's where you're wrong. While dad could do that, we won't ever have to take a single shot. We just need to evade long enough for him to run out of chakra. Him or us, whichever first," said Naruto.
She looked up at him and said, "Fair enough." Izuna afforded behind them and said, "Looks like I always interrupt moments between you two. It seems as though you two are ready for yet another round. If that's the case, I won't go easy on you two."
Naruto and Mito gulped in fear. Their previous round was Izuna going easy on them.
The three of them did for while after which Izuna broke the silence by saying, "If you two aren't going to start, then I will. "
Naruto and Mito didn't wait for Izuna to act. Mito teleported right above him and said, "Earth shattering punch!" Izuna punched her in her hand with just the little finger on his right. Not even the dead cells on his nails were shattered by Mito's punch. She on the other hand was sent flying above. She teleported right above the ground when she reached the upward velocity of zero.
Mito closed the gap between herself and Izuna in just a second. She took a kunai with raikrin and was about hit Izuna with it. He didn't even catch it. He just held his arm up stored it midair paralyzing her temporarily and then abszorbed all of her chakra. He then used shinra tensei on her. She had taken too much and wad down for the count. Suddenly, Naruto rushed him from the side, completely forgetting about good plan of doubt attack, just dodge. He pushed Izuna backwards and engaged him in a taijutsu fight. He landed a punch on him after which Izuna caught him by the hands. He sucked the chakra out of him and punched him in the gut. Izuna then punched Naruto in the face, once with a jab and once with a hook. He lifted Naruto up and three him down on the ground. Naruto was also done. He let the conscience seep out of him for now so that he could ready after his father had beaten him down.
In Naruto's dream,
A pale white man walked to him. Said man was bare chested and was a ball of muscles. He was wearing a white pant below. He took Naruto by the head and stabbed him in the gut. He bent down to Naruto and said, "You have my respect Uchiha. I hope they remember you."He brought his arm up and channeled chakra to it, charging it for something big.Reality,
Naruto woke up with a scream. Izuna who was reading Icha Icha looked up at him and asked, "What's wrong son?"
Naruto said, "Just a nightmare." He saw Mito was in a bed next to his. He also noticed that they were in a hospital. He asked, "What's the time and how long have I been out?"
Izuna said, "It's four in the morning. You both have been out for about two hours."
Naruto jerked in surprise and asked, "Is that really it?"
Izuna smiled and said, "Yeah. The battle itself waged on until two in the morning. A solid eighth hours. Time does fly when you are fighting doesn't it."
Naruto asked, "How's Mito?"
Izuna said, "She's fine. What nightmare did you have that scared you? You haven't had nightmares since the massacre."
Naruto said, "This one had a completely pale man in it. He told me I had his respect. He then went on to kill me. I die up just before he did."
Izuna asked, "Did this pale man have normal eyes or white eyes?"
Naruto said, "His eyes were wider than that of a Hyuuga"
Izuna whispered in a terrified voice, "Ootsutsuki!" 'What do Ootsutsuki have to do in his dreams? If the legends are true, then these guys are practically invincible. I need to know more.' Izuna looked into Naruto's memories to see his dreams. He hasn't known of an Ootsutsuki with that many muscles. This guy made the raikage with all their muscles look like babies. Izuna knew something was off. He would have to look into all of the hideous Kaguya had when she was alive. Unfortunately, none were on earth. They had all been destroyed by the first sage of six paths. Investigation took first priority now.
While he was thinking about this, Mito to stirred up from sleep. He told the two of them to meet him at his office two hours from now to take a mission.