The three of you were friends and it seemed like it would last for a long time.

After Suguru escaped, you followed him, leaving behind your friendship and...everything. After leaving, you began working for the council of elders you had so despised in your youth, but things changed and you had to follow your personal considerations. You didn't keep in touch with Satoru, and there's nothing to even talk about Suguru.

You had no intention of resuming this communication, but you were sent to the magic college for a while, as the situation in the world of Jujutsu had worsened. It all came down to the point that you are now standing in front of Satoru, introducing yourself as his temporary colleague. He's definitely not thrilled.