He walked over to the training ground number four while reading Icha Icha Paradise. There he saw Naruto practicing throwing shuriken's and kunai's in the middle of the block. His aim had increased greatly over the two years. Naruto turned around when he saw Kakashi.

"Ah, Kakashi sensei, what are you doing here?" Naruto asked.

"Well I was taking a walk and I thought I'd supervise your training a little bit." Kakashi said.

"Great! I can't wait to see what new techniques you'll teach me!"

"Uh, right, well let's start with the basics. I want you to aim for the top of that tree there." Kakashi said pointing to a tree that was a yard away.

"But, Kakashi, I've already learned how to do this." Naruto whined.

"Just do it, ok?" Kakashi asked.

"Alright, here I go!" Naruto picked up five shuriken's and kunai's in each hand and jumped high into the air. Spinning around he threw the weapons at the top of the tree. There was a loud thump as the weapons hit the trunk.

"Alright now let's see how well you did, shall we?" Kakashi said walking up to the designated tree.

"Why bother? I'll bet I hit with all of them at the top." Naruto said confidently with his hands behind his head.

"Hmm you didn't do as well as you thought, Naruto."

"What?" Naruto said wide eyed with his jaw dropped. "That's impossible! I've been practicing hitting all my targets for weeks, believe it!"

"Well it looks like you need to practice hitting targets that are much further away." Kakashi said.

Naruto grunted in frustration. 'I've got to perfect my aim if I'm going to become hokage one day.' He thought to himself.

'Not bad. His aim's gotten much better. Only five shuriken's missed the top. He's advancing quickly, just like…'

"I've really improved a lot, haven't I, Kakashi sensei?" Naruto said.

"Huh? Yes, you've improved a bit, but you've got some perfecting to do, as always." Kakashi said smiling.

"I knew it! Look out, Sasuke! Soon I'll surpass you!" Naruto said raising his arms in the air.

"But you've got a way to go yet before catching up with Sasuke."

Naruto lowered his arms. 'Sasuke, he was always better than me. Everyone admired him.' He thought, remembering all the contests they held against each other.

'Those two always reminded me of Obito and me and how we used to always fight.' Kakashi thought, although he never told Naruto or Sasuke, not even Sakura.

"I've also been working on my rasengan stronger."

"Oh? Well let's see it then. Try splitting that large rock by the water fall."

Naruto began building his chakra in his hand by spinning his free hand to make a swirling sphere. When he built up enough chakra he held it tightly in his hand and ran at full speed towards the rock.

"Rasengan!" He yelled as he outstretched his arm. He put all of his effort into the rock causing a powerful burst of rock and dust.

When the dust settled Naruto stood hunched over, panting from the attack. He stood straight as he saw that his attack blew halfway into the rock. He grinned at his success.

"Impressive. You didn't get through the whole rock, but you came pretty close. From the looks of it, your rasengan is about as strong as Sasuke's chidori, or close to it." Kakashi said walking up. "It is, after all, your strongest attack. You've come a long way, Naruto."

Naruto smiled at the thought of impressing Kakashi. "So are you going to teach me stronger attacks now?"

"Not today. I've got some work to do." Kakashi said leaving in a cloud of smoke.

'Yeah, right, he's probably going to try to finish that book I gave him.' Naruto thought. He continued to train.

'Hmm Naruto's chakra has gotten stronger, even though he can use the nine tailed fox's.' Kakashi thought as he walked through the streets while reading his book.

Flashback

Kakashi and Jiraiya walked side by side through the streets of Konoha.

"Kakashi," Jiraiya said. "Before I leave you with Naruto, there's something I need to tell you."

Kakashi looked up at Jiraiya from his book. "Is it about the nine tailed fox?" He asked.

"Yes. As you already know, as Naruto has two chakras inside him, his own blue chakra and the nine tailed fox's red chakra, when he is angry or runs out of his own chakra, the nine tails chakra takes over him and slightly transforms him."

"Yes." Kakashi said still looking up.

"This can send Naruto out of control, even though he is able to control the other chakra, the more he uses it, the worse it becomes, and the harder he is to control. Naruto's transformations could cause him to grow tails. He has already, but his transformations could carry him to have nine. If this happens, no one will be safe. The fox will have a chance to gain full control, and we can't let that happen."

"So what do you suggest I do should that happen?"

"I've found a seal. I want to teach you in order to prevent it from happening." Jiraiya showed Kakashi the rolled up scroll. "Meet me at training ground four tomorrow at noon and I'll show it to you."

Kakashi nodded as Jiraiya disappeared in a cloud of smoke. He looked down at his book once again.

End flashback

Kakashi remembered how it took him less than a week to learn the seal. He kept it in his vest pocket should the need arise.

Suddenly Ebisu appeared in front of Kakashi.

"Sorry to bother you, Kakashi, but Tsunade has asked me to gather you, Naruto, and Sakura to her office immediately. I've already let Naruto and Sakura know."

"Alright, I'll be there in a few minutes." Kakashi said leaving.

Ebisu left for Tsunade's office as well.

Over at Tsunade's office, Naruto Sakura awaited the news Tsunade had for them.

"Where is Kakashi sensei? I want to hear the news! I bet it's a mission. It is, isn't it, granny Tsunade?" Naruto asked.

"You'll see as soon as Kakashi arrives." Tsunade said.

"Aw, come on, just a little hint." Naruto said.

"No. Just wait until Kakashi gets here." Tsunade said.

"Well I don't want to wait. I want to find out now." Naruto said leaning in close to Tsunade.

"And I said no." Tsunade said leaning closer to Naruto.

Both stared at each other impatiently, neither willing to give into the other.

A knock on the office door broke their concentration.

"Come in." Tsunade said.

Both Kakashi and Ebisu stepped through the door.