Yuusei Urahara

Yuusei Urahara is a legendary shinobi, most remembered for his invention of the Rasengan and formation of the Nana Rasen.

The History of the Rasengan
The Rasengan, a powerful Ninjutsu intended to be the highest form of shape transformation. The Rasengan was invented by Yuusei Urahara who was a Chunin at the time and experimenting with shape transformation, on accident he ended up creating a move similar to the Rasengan. Through further experiment he would evolve the Rasengan's prototype until it became a combat effective ability, slowly becoming more and more like the jutsu of today. Yuusei would eventually become promoted to Jounin and serve on the battlefield of the Third Shinobi War, witnessing a Bijuu bombing from the Nine Tailed Fox, Kurama, himself. Once he was sent home from the battlefield, Yuusei would use the knowledge he gained watching the Bijuu bomb and use that to create the finished product of the Rasengan, a natureless Ninjutsu. Upon the creation of the jutsu, he would decide to keep it a secret from the majority of the village, since he didn't want a bunch of people running around with his ability. So he would establish a few things to prevent his jutsu from falling into the hands of unsavory characters. First, the Rasengan would be an ability to never leave the Leaf. Second, only those who hold wills of fire can be entrusted to hold the Rasengan. Three, and most importantly the Rasengan will only be handed down to those who can truly be trusted.

Yuusei would first teach his brother, Junichiro Urahara, who would create the big ball Rasengan to in his words, "Flex on Oni-chan." Yuusei would then spread the rumor his little brother's Rasengan was compensating for something not as big. Yuusei then decided he would teach a total of seven Konoha Nin the Rasengan, they would be dubbed, The Nana Rasen.

The third inheritor of the Rasengan would be Yuusei’s former sensei, after sharing drinks the inventor would show his master, Inasa Yamaguchi, the Rasengan. The drunk man would preform the move flawlessly which was enough the sober up Yuusei. Yuusei would challenge Inasa to a wager, if Insasa couldn’t invent his own unique spin on the Rasengan then he would have to pay the man one hundred ryō, Inasa would happily accept and the next morning appear on Yuusei’s doorstep holding a spinning shuriken made of wind chakra. Yuusei would nearly pass out at the display in front of him, this was the second person to have created a more impressive version of his own Ninjutsu, and all he was capable of creating was a lousy ball.

The fourth inheritor wouldn’t appear till a week or two later, a Chunin braggart who couldn’t help but boast about his mastery of several A rank techniques at the age of thirteen. Yuusei couldn’t help but challenge the boy to a little wager, he had seen the boy around with his rather attractive looking mother and the wager was if he couldn’t learn the Rasengan within a week, he had to set Yuusei up with his mom. In those two weeks prior, Yuusei had been creating the perfect training exercise for the Rasengan and this boy would serve as the test rat for it. Within a couple of days the boy mastered the Rasengan, much to his dismay. The boy’s name was Kyū and he would become Yuusei’s first student, a within a year under his tutelage he would create the Babaru Rasengan, a water change in chakra nature. Much like the Rasenshuriken, the formation changed entirely, and the Rasengan resembled a large bubble, it could even float in the air and didn’t require to be held and was barely visible. The Babaru’s most notable feat was the ability to seemingly pass into a solid and then once the Rasengan bubble pops, an explosion would be created out the other side.

A month later, Kyu would leave Yuusei to do his own thing and the Jounin couldn’t be any more happier, Yuusei was the definition of reluctant and couldn’t be bothered to be a sensei. He missed going around and suckering money out of cocky Chunin and Jounin who think they could create the Rasengan. For a couple of years he would do this, until he would slowly but surely mature into the sensei that would teach the upcoming spirals. Yuusei would eventually take in a group of young Genin, as he would teach them many valuable lessons and as he did this he assessed each of the student, deciding who he’d teach next. As he thought about this, he would go to Ichiraku Ramen for a nice bowl as he thought, until plucky Chunin came up to him asking to be taught the Rasengan. Not looking to make any wagers anytime soon, he told the persistent Chunin no, but that only made him more eager. Yuusei was reluctant for another wager, but he told the boy if he didn’t master the technique in a week then the boy owed him twenty ryō, and at the end of the week the boy failed to master the technique and paid Yuusei the owed ryō. Yuusei would go back to teaching his group of Genin, until a month later the boy would appear after training to show the man his Rasengan. Then would reveal his Earth Release change in chakra nature for the Rasengan, the Rasendoriru. By applying Earth Release chakra and speeding up the rotation twice as fast as a regular Rasengan and adjusting the shape to form a drill, large sharp chunks of earth rotate in the drill as it spins. The destructive power of the technique shocked Yuusei and the only thing that made it worse for Yuusei was his spectating students. Once again he was outdone. But then, The Stone and Leaf War reared its ugly head, Yuusei and his squad would be one of the many Genin teams sent into battle.

Yuusei and his team would be one among many Genin teams that would be deployed in the Takigakure front, his team was apart of the Konoha Suicide Corp, an entire battalion of Konoha’s military that would be sent in to push as deep as they could into the enemy lines. In a way, they were sent in waves to exhaust the enemy or eventually overpower them through sheer numbers. Yuusei and his team were deep inside the Takigakure front, after several days of relentless battle the morale of the battalion was low and so were their resources. However Yuusei Urahara planned on seeing this war through to make his pupils proud, so he relentlessly trained to create the ultimate Wind Release Rasengan. But as he trained himself, Yuusei would look for two more pupils, one of them being a student of his already, and another being someone completely random. The Sixth Spiral, a boy named Tamura was chosen. The Seventh being another boy named Kenjiro, who was apart of Yuusei’s team of Genin. After each battle he would have the boys go through rigorous training, he had updated the Rasengan training exercise to something more intense than the others, he wanted their Rasengans to be at peak performance. Tamura, being older and more experienced than Kenjiro was the first to create the Rasengan, while Kenjiro still struggled with shaping. The two boys were known for butting heads during training, and Tamura being the first to master the Rasengan only intensified the rivalry. Tamura and his group would then receive orders that they’d be joining another Suicide Corp in Kusagakure, after bidding his sensei and rival farewell, he’d be off. Though rumor has it he created his own Rasengan, he was the first to apply a Kekkei Genkai to the Rasengan. After Tamura’s departure, Yuusei would receive disturbing news, at dawn the Suicide Corp would be pushing further into enemy lines, taking part in a bloody campaign in the heart of Iwagakure.

The Iwagakure campaign was long and arduous, the death toll was now racking up in the thousands as they pushed further and further into Iwa. Yuusei would watch out for his team the best he could, but the chaotic nature of The Stone and Leaf War was something they couldn’t predict. The Jounin would also train himself, even though he was low on chakra due to fighting for weeks continuously, however he wasn’t deterred in the slightest in the pursuit of creating the ultimate Wind Release Rasengan, sometimes he would drop from exhaustion due to the amount of stress his body would be put through. The stress from the rigorous Rasengan training rendered him out of commission for three days, once he was released he and his team would be sent on a recon mission, one that would go horribly wrong. They would be attacked by a ANBU level threat known as The Pillar Boys. Yuusei was the first to end up in their trap, leaving him heavily wounded and unable to protect his team, as The Pillar Boys attacked the Genin team. After a large and strategic battle, Yuusei would be freed and engage The Pillar Boys in a heated battle, before leading them into a trap of his own and prepared to show off his new Rasengan. A large tunnel of wind was created and trapped The Pillar Boys inside as he charged up a large Rasengan, but one of The Pillar Boys was a clown and ready to kill the Genin, that’s when Yuusei made the ultimate sacrifice. Yuusei took the attack for his team, while passing his Rasengan to the Seventh Spiral, Kenjiro took his master’s Rasengan and used it to finish off The Pillar Boys, along with the help of his team holding the Rasengan. With Yuusei now gone, all that remained of the Rasengan and Yuusei’s legacy were the spirals he left behind, a few of them remained in Konoha while others ventured out into the world. But they all honor Yuusei in their own way, some more questionable than others.