Sasuke's training!

Sasuke was fighting a missing ninja, he was another one in the bingo book, his name was Katushi, he was from the hidden grass. He was known for his abilities as an assassin and had many assassin-like abilities that Kakashi said would be useful to Sasuke. 'Damn this Konoha brat is good, I'm going to have to go invisible!'

"I am a demon!' suddenly he couldn't be seen, not even with the Sharingan! Sasuke looked around but couldn't see him so he relied on his instincts, he still had his eye open to copy the jutsu. He had an instinct that there was someone behind him, he swung his sword which hit someone sending their arm off. Because of the pain, Katushi had to release the jutsu, 'damn I couldn't copy it!' Sasuke was upset, it looked like a good jutsu. "Damn it!" Sasuke then used the disappearing slash technique, it sliced right through Katushi killing him.

Kakashi didn't like him getting into killing all the time but he knew Sasuke needed it. Kakashi then appeared in front of Sasuke, "let's go back to Konoha, I have something we can work on." "Okay." Sasuke then followed Kakashi back to the leaf. Sasuke has been hunting down people in the bingo book and has gotten quite a few jutsus copied, the other taijutsu, kenjutsu, and ninjutsu were very useful.

After returning to Konoha Sasuke sat in front of Kakashi, "When I fought some shinobi related to Orochimaru I noticed that they could use their curse mark perfectly, it's called curse mark level 2, I was wondering if you could do the same?" Sasuke got excited he knew the power the curse mark gave and if he could control even a little it would give him much more power, "Ok, what do I do?" Kakashi had been thinking about this and still didn't know his answer, Jiraiya had put an even stronger seal on it to where Sasuke could control when it activated, but Kakashi didn't know it was only level 1 or if Sasuke could even think when the mark was active. "Try feeding it chakra, it should activate, just try and keep it stable."

Sasuke fed the mark chakra, the curse pattern went across his body leaving a pattern there, it even changed Sasuke's eye yellow. Kakashi nodded, "OK, now let's spar, if it gets too out of hand I might have to hurt you, also don't use the blade." Sasuke nodded, "This is at least 5 times more powerful than I was before!" Kakashi was shocked, 'that much!' he had expected it to be much weaker, even if it was from Orochimaru. Sasuke then used a Chidori, he rushed at Kakashi at a very fast speed, Kakashi eluded the attack, "You got a lot faster." Sasuke pushed off of Kakashi and leaped into the air, "Fireball jutsu!" Sasuke's fireball was much bigger than he was outside of curse mark, 'insane, this power boost!' Kakashi brought up an earth wall to block the attack.

"Lightning rope!" a rope of lightning wrapped around Kakashi, Kakashi easily maneuvered out of the ropes, he was impressed with Sasuke, "OK, I've seen it, very impressive!" Instead of stopping, Sasuke attacked even more. He launched a barrage of attacks, "Ahh!" Sasuke was getting out of control, Kakashi didn't want to hurt him but he needed to do what he needed to do. "Earth style, fang pursuit jutsu!" Kakashi's dogs popped out of the summoning and rushed to Sasuke, they all bit a part of his body, locking him in place. Sasuke got even more out of control and Kakashi noticed his body changing, "Sasuke!" Kakashi didn't want it to get out of hand, he appeared behind him and cleanly knocked him out.

Sasuke fell down without any consciousness, Kakashi picked him up and brought him to the hospital. Once at the hospital he saw Ino, Hinata, and Sakura all with Tsunade, "Sasuke!" both Ino and Sakura yelled at the same time, "Don't take Sasuke away from me Ino-pig!" "Same for you billboard brow!" Tsunade walked up to Sasuke, "What happened, didn't I tell you hunting in the bingo books was dangerous!" Kakashi shook his head, "He activated the curse mark, he got a little out of hand, I just need you to check something for me."

Kakashi explained what he needed and Tsunade got to work, she examined Sasuke's body and drew two conclusions. "Sasuke is fine, but his chakra reserves have fallen a lot. I assume the curse mark draws a lot of chakra and needs a constant supply. Also even more important is what it is, I need Jiraiya to be sure of this but, I think it uses natural or nature energy. Jiraiya could tell if it's similar to sage mode as he is better than me at that."

Kakashi nodded, he couldn't do anything with that whole sage mode thing but he would definitely have to get his chakra reserves up. Kakashi also knew he needed to start training hard again soon, he wanted to get back in shape like his ANBU days if he was going to have to fight the Akatsuki, they were too strong not to be. Kakashi was thinking maybe Sasuke could follow his old training schedule not only to get more skilled but to also get higher reserves. After a day or so Sasuke woke up, "Where am I?" Kakashi looked over at him, "Don't worry about it, we have more training to do." Sasuke nodded, Kakashi and Sasuke then walked outside of the village. "We will be training with Guy, this will get me back into shape and you larger chakra reserves, you will also do some workouts with me."

"Oh, my eternal rival wants to work out with the green beast of the leaf, Might Guy!" Kakashi already felt this was going to be bad, "Let's start out small, 20 laps around the village!" Sasuke and Kakashi didn't even know what to say at that point, how the hell was that small!" Guy smiled, "I see you are excited, let's go youth!"

Sasuke and Kakashi followed Guy until they dropped, Sasuke got through 10 laps and Kakashi got through all 20 but was exhausted afterward. After a long time later of Guy's training, it was time for Kakashi's. Kakashi's was a lot better, it was mostly agility, as a ninja you needed to be quick and quiet. There was also reflex training, it wasn't until after training did Kakashi really realize how far he had fallen.

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End of the chapter and let me go through a few things, this is mainly for Spankdady.

Sasuke- he cannot learn sage mode because he has nowhere to learn sage mode, and I don't think slug sage mode fits him. He might learn lightning armor but IDK yet, I have to think about future fights.

Naruto- he will not learn Kenjutsu as he has no reason to, he will continue to fight with his chakra blades. And for FTG, he cannot learn it, he had nobody to teach him, Jiraiya definitely doesn't know it or he would use it. There is no reason he can learn it and it will make him have an ability that will make other fights not as good.