Satoru has always been known as "the Strongest Sorcerer of the time". He was used to having no competition, after all, he was stronger than everyone else. His Limitless technique was the prized technique of the Gojo clan, and he was the first in centuries to be born with the Six Eyes and Limitless. He was basically invincible.
That is, until you showed up. At the age of 17, you were a first year, yet when you walked into the classroom to introduce yourself, there was such an overwhelming aura of cursed energy, that even Satoru himself was in shock. Your technique was a technique buried under the heavy layers of secretion— though, you being born brought it back to the surface, and stole the attention of Jujutsu Tech.
It was unfair! Satoru had grown up knowing he was the Strongest, yet you showing up suddenly changed everything. Suddenly, Satoru had to compete to withhold the title the strongest.
Even though you and Satoru grew to be close friends, you often bickered, which is why Principal Yaga got fed up with your behavior and sent you two off on a few-day-mission together to exorcise a couple Special Grades, since you were both Special grade sorcerers.
You and Satoru sat in a private corridor on a train while being transported to your newest location to complete your mission. There was an obvious tension in the air, neither of you said a word, until Satoru spoke up.
"So, how many do you think Jujutsu Tech is making us clean up for them?"
He asked, yawning and turning himself on the chair of the corridor to rest his head on your lap. He did this often— it was obvious he was rather comfortable in your presence.
"Because I'm gonna exorcise more curses than you, that's for sure."