Kakashi:"That was pretty quick, but lets see how you do this. Remember, use your shadow clones."
"Ok sensei."
The young boy, dressed in his black outfit, similar to Ebisu's, took the kunai Kakashi sensei handed to him. Mansewerz wondered why he was given this normal kunai. He used his byakugan to check it for odd features, but none were found.
"I want you to charge your chakra into this kunai, making it carry an electrical current. If you do this right, it should charge the lamp I placed near that tree. The lamp should be lit for at least the rest of the morning. If you charge to much in it, the lamp will explode, or too little, it will barely flicker."
"But sensei, I have already done the tree walking technique. This is the exact same thing."
"Tree walking is a basic chakra technique, it has nothing to do with elemental chakra. If you were fire, I would expect you to boil a pot of water until all the water had evaporated, water, you would need to maintain a small waterfall, wind, you would need to maintain a concentrated gust of wind on a tree, and earth, to create a tree and maintain it. But you are lightning, so this is your task."
The dark haired boy, grabbed the kunai, and charged his chakra into the kunai. Eventually a few sparks came out. Nothing more. Mansewerz tried again, and still only sparks. How long would this take. About a half hour later, the kunais were ready to throw.
"Okay, release the jutsu, and do it again, but this time, throw it."
Mansewerz concentrated his chakra once more, and felt it was ready to throw. He bent his knees, crouched a little, and raised the kunai to his ear. He could hear the electrical whurring, yet it was so faint. The boy flexed his biceps, and shot the kunai.
Bzzzzz, bzzz, bz.
The kunai hit the cord of the lamp, yet it barely even flickered.
"Hmm, this may take a while. Try again!"
Mansewerz, red with embarrassment, tried again. This time, the kunai had a loud buzz, and it shined quite a bit. Again, in the same posture, Mansewerz launched the kunai at the cord. The lamp flickered a bit, and then finally lit for about a minute. Progress! Exactly what Mansewerz loved seeing. He used the jutsu again, and launched the kunai. It fell to the ground, a split second after he threw it. Had it gotten heavier?
"I see you've found out what happens when too much chakra is put into the kunai. The chakra will heave it down, so you need to lessen the chakra release, and increase the strength on the throw."
"Right!"
It was odd how Mansewerz was so enthusiastic. The boy with the demon inside him, the boy with no parents, the boy who could never advance in ninja rank, had the best attitude of them all, even better than Naruto himself. Everytime Kakashi looked at Mansewerz, he saw 4 people, Naruto, the demon boy who dreamed of being hokage, Sasuke, the genius and only other survivor of the Uchihas, himself, Hatake Kakashi, the boy who once thought of only the mission, and not his friends, and last of all, Obito, the most loyal friend.
Bzzzzzzzzzzzzzzzzzzzzzzzzzzzz!
The lamp switched on and it seemed that Mansewerz had mastered the training. He saw that too much chakra heaves it down, so he used mathematics to figure out the aerodynamic part of the lesson. He charged enough chakra into it without heaving it down. And so, the byakugan beast finished the lesson with ease.
But at that moment, something inside Mansewerz snapped. Something he had never felt before, but felt so familiar to him. It was like something came into his presence. It was a mood swing again. He looses his temper when this happens, and so, a lightning bolt split the pupil of his right eye, and a flame in his left pupil. His fangs grew again, and nails grew sharp. He looked like Kiba during his beast mimicry. In the blink of an eye, he pulled a kunai out of his satchel, and started to charge his chakra into it. But Kakashi's mind was somewhere else.
"Kakashi sensei, I'm back. I haven't seen you for years!"
It was the voice of a saint, but blended with a demon. The boy who pushed the boundaries, the one that was just like Mansewerz, an orphan, an outcast. It was Uzumaki Naruto, the Kyubi holder.
"Hmm, your back." said Kakashi in a calm voice. "Mansewerz, what are you doing, that amount of chakra in a kunai could kill you!"
"I cannot allow it to live!" replied the satanic, new voice of Mansewerz, the demon's voice.
It was too late, Mansewerz had already bulleted the kunai through the air. It went faster than the Fourth's Hiraishin. Jiraiya had noticed this comet of a weapon, and he used all his speed to do what he could.
"Huh?" thought Naruto, but his thought was broken when he was tackled to the ground by Jiraiya. The kunai flew over head and exploded after hitting a large rock formation. Only rubble was left. Mansewerz had fallen to the ground, fast asleep, just like every other time.