Instead of going to Campwannaweep Ron try to become a ninja, but
10 years...
On the mountains of Japan there was a ancient ninja school called Yamanouchi. During training an old man supervised his students and saw a particular small young blonde boy of age of 5 yrs old. As the sensei watch over he noticed the blonde being picked on and bullied. As he watched a tall man with a trench coat with a sword in hidden inside. As the man approached the old man.
"Been a long time... old friend." The man says.
"It's good to see you too Hiko Seijuro XIII" Sensei replies smiling.
"You've never asked me to train one of your students." Seijuro says. "Why now?"
"Maybe it's time to decide on a disciple for you to passed on your style." Sensei replies.
As they both continue their discussion the seijuro couldn't find a apprentice to pass on his style too. As Seijuro headed back out he noticed 3 to 4 black hair students surrounding a certain blonde boy. As he watches one of the boys spotted him.
"What are you looking at?!" One of the boys asked who seems to be the leader of the group. "Wanna get your butt kicked?"
After a minute or two Seijuro just grab a nearby trees branch.
"Well... I have time when I beat you guys leave him alone." Seijuro says
10min later give or take
The ninja students were all left laying on the ground. He turned to the blonde boy.
"They won bug you again." Seijuro says. "What's your name?"
"Ronald Stoppable." Ron replied.
"Ronald... that's to long for a swordsman. How about Ron?" Seijuro asked. As Ron nodded.
"Come. Follow me and I will teach you my style." Seijuro says
As they both leave the school sensei that thought 'Stoppable San you will have trouble times, but you may be the only one that save the world when it matters most.'