After reading his memories, Fujin analyzed, 'I see. So Nagato has already killed and replaced Hanzo quite some time ago. The Land of Rains is officially a forbidden place from now onwards. Though I should be able to escape from the Six Pains, there is no need to risk confrontation with him as of now.
Anyway, it looks like the Lightning Dragon and the Lightning Crows were the two strongest jutsus this guy could use with the help of this sword. Still, this guy
The sword was given to him by Hanzo after the previous wielder died. To think that he would betray Hanzo and beg Pain to allow him to serve him instead. Should I consider him traitorous or just a smart guy to leave the sinking ship? Hmm, probably the former. He wouldn't have attacked me if he was that smart.
Oh well, it's good that Ame at least did some research on this sword. When they first got it, they could only use it to cut through chakra and zap anyone by physically touching the sword to them. That would have been borderline useless in a battle at my level.'
Fujin stopped providing chakra to the sword and the Thunder blade disappeared. Fujin stored it in one of the storage seals he had inscribed on his right forearm. He cremated the Ame Jounin's body and buried the ash deep into the ground as usual and left the area. As for the other 3 bodies, Fujin didn't particularly care. After all, they barely saw anything before dying.
As Fujin left, he analyzed, 'Though I have this sword, I might still need to get a couple more made of chakra metal. The Blade of the Thunder Spirit, though good, is in elemental form. I'm not used to such a sword.
I'll need to test how this sword will perform against a normal sword that has chakra flow charged with different elements. If it doesn't work against Wind or Lightning chakra flow, then using it for defense will be suicidal.
That said, using this sword as a medium for using long and mid-range Lightning jutsus will be very useful. If I can't settle a fight quickly against an opponent who is about as strong as me, then I should use this sword to conserve my chakra. Oh well, I'll experiment with this later and decide what to do.'
Fujin quickly moved towards Konoha, changing his appearance back to Fujin once he entered deep into the Land of Fire. A day later, he reached Konoha without any other incident. He visited Shichiro and reported the completed missions before returning back to his house.
After returning, Fujin thought, 'So what should I do now? Should I continue with the Flying Thunder God training? Or should I continue with what I started in the valley?'
Fujin thought for a bit before deciding, 'I have been training the Flying Thunder God non-stop for quite some time. I'm developing some fatigue. I guess it'll be good to take some time off that jutsu and focus on others. I guess it's time to finally master this'
Fujin raised his right palm and began releasing chakra. It began rotating and Immediately formed a Rasengan. Immediately, Fujin began infusing Wind chakra into the Rasengan. Slowly, Wind began revolving at a very high speed around the Rasengan. Four very small blade-like shapes appeared around the Rasengan, spinning rapidly around it.
Fujin looked at the chakra ball and thought, 'I knew that my affinity to Wind is high, but I never imagined that it would be so ridiculously high. Thanks to the Shadow Clone trick, I managed to infuse Wind Chakra successfully into the Rasengan with an hour of practice back in that valley. However, my clones managed to infuse the Wind Chakra into the Rasengans without the aid of any other Shadow Clone on the second day of training itself. To think that I would learn Wind Release: Rasengan so quickly without needing any clones to assist me'
Fujin slowly dispelled the jutsu without letting it explode. A breeze appeared inside his house, but thanks to Fujin's control, no damage occurred. However, Fujin's breathing became rougher.
He analyzed, 'That said, the chakra needed for this jutsu is beyond ridiculous! And this is just the Wind Release: Rasengan. Rasenshuriken will still require even more chakra.
Though I spent 5 days training there, I couldn't actually train a lot due to how chakra-intensive this training is. That said, I could only spend half my chakra back in the valley as I needed the other half in case something happened. This time, I'll consume the soldier pill and have my Shadow Clones train 5 days straight.
Not to mention, I have another issue to handle. While creating this jutsu shouldn't be a tough task for me, actually slamming it into an enemy would hurt like hell. My Shadow Clones instantly disperse due to the backlash of the jutsu after they slam it into an object.
It's time to go to Mount Muteki. As per what Ryu had said the first time we met, my chakra has already surpassed what he had said to be the minimum requirement for learning Senjutsu. If I can learn Sage mode right now, then I'll be able to handle the backlash caused by the Rasenshuriken. Besides, I'm excited to see what the Sage mode taught by Winged Sabertooths would look like'
Fujin was about to summon Kaito when suddenly his bell rang. Fujin looked towards the door and thought, 'Naruto? What good timing he has. A few minutes ago, I wouldn't have returned home and a minute later I would have already left'
Fujin opened the door and Naruto excitedly said, "Fujin! I had just come to train when I saw that you had returned!"
Fujin smiled and said, "I just returned. And, I was just about to leave once again. What's up?"
Naruto looked in a confused manner and asked, "You are leaving already?"
Fujin nodded and said, "Yes. I have some work. I should be back in another week or two. Anyway, how's your progress?"
Naruto immediately answered, "I can run up the trees now. However, I'm still struggling with using two jutsus one after another."
Fujin replied, "That will take a lot of practice. Keep training as hard as you can and you'll succeed soon. Good work with tree climbing though. Come with me. I'll show you another cool thing before I leave."
Naruto excitedly followed Fujin while exclaiming, "You are the best, Fujin!"
The two quickly made their way towards the river. Fujin said, "This one might be more fun than climbing on trees. This time, you'll have to learn how to walk, and later run, on the water."
Naruto's eyes widened. He asked Fujin in surprise, "We can do that?"
Fujin replied, "Sure we can. Watch."
Fujin stepped forward and began walking on the water. He turned around and said, "Now you try. Concentrate chakra on your feet and step on water."
Naruto nodded and followed Fujin's instructions. Needless to say, he fell into the water on his very first step, causing Fujin to chuckle. Naruto quickly swam up, moved to the river bank and took deep breaths. Fujin said, "This is much more difficult than walking up the trees. The surface of the tree stays firm unless you apply too much chakra.
However, the surface of the river keeps moving as the water moves. In addition, the amount of chakra you need to release to stand on it is much higher. Keep those in mind as you try again."
Naruto said, "Alright. I'll try it again."
Fujin got off the river and saw Naruto trying it. After a few minutes, Naruto managed to take 2-3 steps before falling into the river.
Fujin said, "Good. Just keep doing this until you are able to walk on it. Once you are comfortable, you can try running and even try to skate on it. Practice this along with the two combination jutsus. I'll leave for now."
Naruto said, "Thanks again, Fujin. I'll begin running on water in no time. Believe it!"
Fujin smiled and said, "I will. That said, if your chakra becomes low or if you are too exhausted, don't continue this training. If you fall in and have no energy to swim out, then you will be stuck in the middle of the river, flailing your limbs and might drown, unable to exit the river and will never achieve your dreams. So, be careful."
As Fujin spoke, his voice became a bit scary, causing Naruto to shiver. Naruto nodded and said, "Don't worry. I won't overdo it."
Fujin once again smiled and said, "Alright. See you later."
Fujin disappeared from Naruto's vision. Naruto muttered, "Fujin can be scary at times. Still, I want to learn how he can disappear out of nowhere."
Of course, though Fujin's words were scary, he wasn't really worried. Naruto was the last person in this world who could die of chakra exhaustion. Even if he fell into such a situation, Kurama would have no choice but to send him chakra. Of course, that would attract Hiruzen's attention, which was something that he didn't want to see. That is why he warned Naruto.
Fujin returned to his training ground, summoned Kaito and said, "Kaito, reverse summon me back to Mount Muteki."
Kaito said, "You sound impatient. Anyway, sure. Give me a minute."
A minute later, Fujin disappeared from Konoha and appeared on Mount Muteki!