Obito

(You are Kakashi)

A typical, absurdly exhausting training session, as always. Kakashi and Obito had been paired up to fight.

Minato and Rin watched from a distance as punches, kicks, and vague attempts to block blows were exchanged across the field.

Finally, Minato saw Kakashi use an earth-style jutsu, raising a wall to shield himself from the fire coming at him in large quantities. He then let Obito fall for the decoy he had left on the surface, while he himself was comfortably underground, waiting to grab the Uchiha by the leg and drag him to his own location.

"Damn it, Minato sensei, Kakashi is a cheater! He used earth style again!"

Kakashi crouched down and snorted in front of Obito. It wasn't the silver-haired man's fault that the Sharingan that Obito himself had given him was giving him such an advantage over the Uchiha.

"It's a fair fight, airhead, there are no tricks, you just have to learn to think fast and use your big head. If you have one, that is."

He muttered as a last remark before receiving the kunai from his clone. Immediately, the clone disappeared, and Kakashi stuck the kunai into the ground beside him, marking his new victory.

"We're done."