You could clearly see the difference between the two fighters. Red had a more natural and aggressive style of swordplay while Blue had simplicity, discipline, and speed as the foundations of his sword style. There was also a strange thought that developed in Naruto which was that Red was not using a sword style and was either simply dishing out attacks that correspond with the opponent or attacking efficiently in order to strike at the opponent's body. In the end, it was still amazing to Naruto that swordsmen were capable of many things, especially supernatural ones.
Clashes filled the space with waves of air and bright sparks that would drop on the floor slowly. No, they weren't falling slowly. Red and Blue were simply moving at high speeds. If it was ten minutes ago and someone asked Naruto if he can see how the fight is going, then he would've told that person that he only sees blurs everywhere. However, having the Gamer Ability is simply perfect for every situation as it always lets the user adapt.
[Speed Sight Level 13, Exp-44%]
This was the skill that he developed from watching these two. Cain compared it to the Sharingan and its ability to catch things quickly which Naruto understood due to his knowledge of clans that he read about in the library. Naruto realized the benefits of this skill is that it requires no chakra and no bloodlines and so the only flaw that it would have is that his body was not fast enough to follow his eyes. While he was pondering this, Red and Blue took it up a notch and increased their speed even more. After another five minutes, Naruto saw that a notification board pop up in front of him.
[Speed Sight Level 20, Exp-6%]
[Dark Slayer Style Level 1, Exp-0%]
Naruto: 'Dark Slayer Style? How did I...' Naruto looked to the fight that Blue and Red was having. 'Did I get this from Blue and Red's fight? If so, who's is it?' He was a little bit confused. 'Not to mention the owner of the Dark Slayer, I don't even know what this skill is.'
Blue: "Child." This got Naruto's attention. "Did you learn anything?" Their practice fight was done.
Naruto: "I guess I did. Want me to show you?" Blue nodded. 'Well. Might as well activate it and see what it is.' When he activated it, information rushed to his mind and body. How to move, how to attack, how to breathe, everything. Even the core moves of this style were deeply imprinted in him. It was only a matter of experience that he needed to make the style release its full potential and demonic power to fulfill some of the requirements.
Red: "Alright kiddo. Fight me. I want to see what you have learned." said Red as he got into his position. Naruto summoned his Yamato out and took one of the forms of the Dark Slayer. Blue raised his eyebrow while Red smiled and looked at his brother. "You're seeing this right? He is your perfect heir! Already has the sword and now has the fighting style. You got nothing to worry about." He looked right at Naruto. "Kid go all out. I want to see where you stand when you fight me. Sword or no sword." Naruto smiled to show his approval.
Blue sighed when he heard Red but nonetheless stayed relatively quiet and continued observing. His facial expression went back to the indifferent countenance that it had before. He may have looked uncaring outside but inside, he was quite impressed at Naruto's learning capabilities. Naruto took a glance at blue.
Naruto: 'So it's his huh. The way he moved before. I can see the similarities.'
Red: "So are you ready kid?"
Naruto: "Yeah."
Red: "Begin!" He said before rushing towards Naruto. Naruto knew that he cannot beat any of the two with his physical prowess so he can only rely on his skills instead. Using the Shadow Clone Jutsu, he flooded where he was with clones. A quarter of them attacked Red from all sides but he simply could not be brung down. Either Red is too fast or heals too damn quickly. However, due to the Shadow Clones being upgraded many times, the clones did not disappear in one or two hits. Some of them even had a smart idea of incorporating Chidori into Yamato.
The idea was successful as Red had a harder time dodging all the clones and fighting back. With Demonic power, the Yamato can match Red's sword but with no demonic power, it becomes quite useless and vulnerable because, in the end, it's not invincible. With the Chidori's support, the Yamato gained an artificial lifeline that triggers and upgrade its sharpness but it's abilities still can not be activated. As the clones distracted Red, Main Naruto and the rest of the clones were activating a Jutsu.
Naruto started pouring out chakra to activate Chidori Tempest. Because it was a fusion jutsu, all it took was chakra and Naruto's own will to activate the Chidori Tempest. Unlike the Chidori and Rasengan, it is no longer necessary to have direct contact because this jutsu just hits everything from both long and close range. Once it is unleashed, storms of lightning will bombard the target that Naruto points to. Once the jutsu has a target and as long as Naruto has chakra, it will attack the target and even follow it until the target is either hit or obliterated.
Launching the jutsu, many of the clones disappeared to a lack of chakra while the ones remaining got their swords out ready for a fight. The clones fighting Red obtained info. that the jutsu was released so they immediately backed off and decided to get into position to attack Red when he gets out.
As the lightning started to come to Red, his instincts started to scream like crazy. His body, mind, and soul told him to run but being caught off guard, he couldn't in time. Red's eyes became big at the sight that overcame him. Right before he got hit, he thought he heard thousands of birds chirping all at once.
BOOM!! An extreme large electrical explosion took place.
That's right. Not a single damn change in his expression. If this was Naruto before he met Cain, he would've questioned as to why he doesn't care about his brother but this Naruto knew otherwise. He knew that Blue was not worried because Red is fine. Naruto was sure that this was what Blue believed.
Little did he know that he was ninety percent right. Blue, even though he may not admit it, believes in Red's powers so he knows that Red will survive. What shocked Blue was that Red had to use his trump card in order to block Naruto's attack. In fact, this led to believe that he was a worthy master of the Yamato. Unknowingly, Naruto already obtained Blue's approval as a warrior and a fellow wielder of Yamato.
The smoke was disappearing and Naruto's thoughts were instantly confirmed. There was a shadow in the middle of the crater where all the smoke was coming from. Once the smoke disappeared a little more, he saw less of a human figure but more of a humanoid figure. When he saw wings coming out of the smoke and then doing a single flap to clear everything up, that's when he was convinced that Red was completely fine. In fact, he was more than fine. Naruto could simply feel the power coming out of him like heat or something.
This form that Red took had a reptilian-like body with cracks and pulsating lights on his upper body while his lower body looked like it belonged to a rock monster. It almost reminded him of a volcano that he read about in a book. As Red flew out of the crater and to Naruto, his wings started to come together and change. Now it looked like the jacket that he was wearing when he was in his human form except it had two big horns on its respective sides going over his shoulder area.
Red: "Nice job kid. You even made me pull off my devil trigger. Even now I'm aching a little from that." said Red as he messaged his shoulders with a smile. All the clones that Naruto had active all disappeared together.
Blue: "Most impressive. You have incredible power at such a young age. You will be a good fighter in the future." These words were heard by Naruto but he didn't put any importance to it because he had one thought in his mind.
Naruto: 'What's devil trigger?'
Red: "Hahaha." Red laughed gaining Naruto's attention. "You look like you want to ask what devil trigger is." Naruto was a little embarrassed.
Naruto: "I do."
Red: "Don't be shy little man. I got my as* handed to you so I'll explain it for you. Devil trigger is a special power possessed by demons and hybrids which allows them to release their inner supernatural potential. Which basically means that we can transform in order to unleash our maximum power. Of course, there are exceptions to that rule and there are also other ways that we can also unleash this power. For example." He pointed to his sword. "This is my sword Rebellion. It allows me the devil trigger form that you saw previously." Red takes out another sword. "This is Alastor. Another weapon that allows me to achieve another devil trigger form that is different from my previous one. Then there is another that I want to show you but for now, I'll keep it under wraps."
Blue: "It is rare for some swords to allow its user to gain another form unless they are the chosen one for the sword. Other demons can also devil trigger without a weapon and some may not even change shape at all."
Red: "In the end, it's a way to unlock one's inner potential like I said previously."
Naruto: "What about me?" he pointed to himself excitedly.
Red: "That's sort of complicated." He rubbed his head. "You see, your bloodline is kind of trash right now. Not to mention its quantity." Naruto looked downcast. Visibly less happy. "This is not a bad thing though."
Naruto: "Huh?"
Red: "Your bloodline is basically blank. A white sheet of paper that hasn't been touched yet because it is being formed out of nowhere. Can you guess what can happen?"
Naruto: "I can gain other's bloodline to make or improve my own?"
Red: "Bingo. You got it."
Naruto: "Great! That means that I can much stronger than every other person ever." He looked at Red. "So can I have your bloodline?"
Blue: "Technically yes but you need the source for max benefits."
Naruto: "The source?"
Blue: "Our father. The demon leader that fought for humanity. You should gain his bloodline."
Naruto: "Um...how do I do that?"
Red: "Easy. Ask our father. If he agrees, great! You got yourself the blood of one of the strongest demons in existence. If not, well you can always try to knock him out and take it for yourself. Although I think that the last one might end in failure."
Naruto: "You think?" he said in a sarcastic tone.
Red: "Well you never know if you can. We also have picked the other demons that might be useful for you so be prepared for the future."
Naruto: "Okay. That's cool." 'God this thing is so complicated. How the hell do I meet their dad? Dimension Travel?!?' "So uh anything else."
Blue: "No. You're about to wake up."
Naruto: "Oh. Alright then." He turned to face both of them. "Thank you for teaching me. I really appreciate it."
Red: "You're one of us. It's only natural."
Blue: "I'm leaving." Blue said before he started walking away.
Red: "Look at me." Naruto looked directly at him. "In the future, if by chance you gain the Rebellion or its approval, make sure to ask me for help alright?"
Naruto: "...Why are you being nice to me?"
Red: "Let's just say I want to see my brother boil in anger when I snatch his heir right underneath him." He mischievously smirked before he started to leave. Seeing their backs, Naruto wondered if he could ever be as powerful as them.
Waking up, Naruto looked around. There was an ungodly amount of sweat formed on his body and he was hungry. Really hungry. He looked at the clock to see that it was only five in the morning so he decided to eat a prodigious amount of fruits as he looks over his notifications that he missed in the dream world.