Kakashi said, "Let's dance!"
Kakashi closed the distance between him and the clones within a millisecond. He slashed right across them as soon as he got there.
The two originals attached him from the ground with kunai. Kakashi blocked them both but the kunai were literally cut into two parts upon contact with Kakashi's sword.
Menma and Sasuke swirled away from the swords. Menma coated his arm with wind chakra and practically formed a sword of wind natured chakra. Sasuke did the same with lightning.
Kakashi lashed out at Menma first. Considering that Menma had solid wind chakra it should have been hard for Kakashi to cut through it but Kakashi's sword once again went through Menma's like a hot knife through butter. Menma ducked under him and formed a Rasengan to slam at Kakashi. Kakashi being the ever powerful kamui wielder just sent it into Kamui.
Sasuke attacked from the back. Kakashi sidestepped his attack and caught Sasuke's arm and through him at Menma. Menma and Sasuke both fell down.
Kakashi said, "We've successfully warmed up. Let's begin lesson one: Taijutsu!"
He re-sealed his swords and was beside Menma and Sasuke within the blink of an eye. He performed a perfect split kicking both of them in the head. He changed his trajectory towards Sasuke; caught Sasuke's collar and put him on the ground, kicked him in the gut and sealed his arms. Menma was on the ground from that attack. He was very near to Sakura. Kakashi closed the distance between himself and Menma and kicked Menma in the face as he was rising up. Menma screamed, "Now!"
Sakura caught Kakashi's leg and pulled him down and came out only for Kakashi to perform Kawarimi and trap Sakura within the ground.
Sasuke stood up and said, "This has gone on far too long!" He got into a defensive stance for his clan Taijutsu style. Menma too stood up and slid into an offensive stance. He made quite a few shadow clones. All of them ganged up on Kakashi. Kakashi swiftly took care of all with simple and precise kicks to important parts of the body.
He was finally faced with Menma and Sasuke. He tried to kick and punch them respectively at the same time. Both of them successfully blocked him. They had stopped underestimating him, had they? He'd see!
Kakashi launched into a barrage of attacks against Menma and Sasuke at much higher speeds than before. They could barely follow Kakashi's limbs as he attacked them. They tried to block his attacks but by the time their muscles had implemented the actions for a block, Kakashi had already completed his attack. Kakashi battered them for the next one minute without a break. Finally, he threw them backwards next to Sakura.
He sighed and said, "You left wide openings throughout the last minute. If it were anyone else, they would have murdered you!"
'If that anyone else had been an above average kage level shinobi' but that thought never left the confines of Kakashi's mind.
Menma and Sasuke swiftly brought Sakura up and redoubled their efforts into running away from Kakashi in Shushin form.
They stopped a few kilometers away from Kakashi. They were panting and having for breath. Poor Sakura fight even know what transpired between Kakashi, Means and Sasuke. All she knew was that Kakashi was destroying the two of them.
Sasuke asked, "Since when was Kakashi this strong?"
A voice said, "Since before you were born. Why would you doubt that? Now let's move on to Lesson Two: Genjutsu!"
His Sharingan flared and spun violently. Instantly, all three of them were sent into a genjutsu world.
Sasuke's genjutsu,
Itachi was right in front of him. The both of them were all alone.
Sasuke knew that this was a genjutsu. He said, "KAI!" When it didn't work, he tried once more in frustration. He used his Mangekyou to undo the genjutsu. Itachi spoke, "Oh you think this is a genjutsu? How pitiful! You can't even differentiate between genjutsu and reality! I was capable of that when I was mere seven years old. I'll put your grievances to an end. This is mercy!"
Sasuke uttered "Kai!" once more trying to dispel whatever it was he was in. This time since he had good Mangekyou on, the genjutsu dispelled only to leave Itachi standing over Kakashi.
This couldn't be. There was no way Kakashi was less powerful than Itachi. Right? He tried to dispel genjutsu again. Once more there was an Itachi standing. Itachi said, "You finally broke out of my genjutsu! We'll take this, "Izanami!" Sasuke was back in the original genjutsu. He tried to get out but every time the same cycle repeated.
Sakura's Genjutsu,
She was in the middle of a wedding. There were two weddings taking place. One was between Ino and Sasuke and the other was between Sakura and Kiba. Kiba was smelly and dirty. He kept on making dirty jokes. Ino and Sasuke were teasing her without a stop. She couldn't bear this kind of thing!
Menma's genjutsu,
His was fairly simple than everyone else's. It was everyone calling him a demon. Only change was literally everyone. Even his friends and family. While the others wouldn't be a challenge to him, Naruto, Izuna, Mito and Sasuke claiming that he was one and speaking to him in a condescending tone really got to him.
Eventually after all the insults he was on the level of crying. Then all of a sudden, a rough shockwave blasted everyone apart. There was a large cage in front of him. He seemed to be in some form of a sewer. He looked inside the large cage. It was empty.
Unknown to him, the Kyuubi was lurking in the darkness. It figured, "Let's test the damn kid. If he wants my power for the sake of f*$!#*g everyone up or if he wants to do nothing with me and hates me from the beginning, then I just let him use it until I can get out and rip his insides and make them his outsides. If he actually cared about bijuu and didn't want him for just his power, he would let the boy prove himself. While he knew that most humans were s#*tholes, Izuna had shown respect and courtesy to bijuu. But he was descended from that f*##*r Madara, so you never knew. He had been teaching the boy that Bijuu weren't bad just misunderstood. He made a point again just a few days ago. The Kyuubi was somewhat hopeful but still had a doubt in his mind. He stepped forward in this state of mind..
Menma saw a fox like silhouette from the cage. It got larger by the second and all of a sudden, there were two large red eyes starting at him.