Starting out

 In the Village Hidden in the Clouds.

"Raiden come down from there ya fool!" Said a dark skinned shinobi wearing glasses, and spitting horrible raps.

"You're so lame big bro B" Said Raiden as he teleported down in a flash of lightning.

"Fool ya fool! Ya pops said to come to his office if you really wanna graduate early" Said the shinobi known as Killer B

"Really?! I'm going now!" Raiden teleports once again, speeding to the raikage office

"Took you long enough brat." Said the third raikage A. 

 "Yeah yeah whatever! I can graduate early?!" Asked Raiden

"Yes, but you must defeat a Chūnin to prove yourself." 

"Sure sounds easy enough!" Said Raiden

"Rokuru, get in here!"

"Yes Raikage sama!" Said a tanned shinobi with striking green short hair, and a sword on his hip

"You will spar with my son Raiden to determine if he should be allowed to graduate early. Don't hold back at all!"

"Yes Raikage sama!" Said Rokuru as he greeted Raiden 

"Let's head to training ground 12!" Said the third Raikage

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I'll count down your match. Three Two One, Begin!

Rokuru stares down Raiden waiting for the boy to make a move, and as expected, Raiden rushes to attack

Raiden rushes towards Rokuru, and without making any signs, creates a lightning dragon, catching Rokuru off guard

"No seals at his age?" Rokuru is shocked, but quickly dodges and quickly makes signs "Earth style: Earthwall!"

Rokuru relaxes for a second but is shocked as Raiden teleports infront of him, touching him and sending a huge burst of lightning through his body, instantly knocking him out

"As I expected! Piece of cake!" Raiden gloats after winning pretty easily

"My boy is so strong already! Kumo has a reliable new generation!" The third raikage laughs and pats Raiden on the back, and then hands him a hiate

"You've gained the right to graduate early brat, starting tomorrow you will be working with your brothers Ay and Killer B."

Raiden cheers and jumps for a little before putting on his hiate "I'm finally on my path to becoming the strongest ninja!