In a world full of curses, Gojo Satoru's love story might start at the Jujutsu High. There was a new student who was very talented. Gojo noticed her immediately. He became her mentor, guiding her in the ways of jujutsu. As time passed, their relationship changed. He found himself falling for her. They would often train together until sunset, and in those moments, their love quietly blossomed.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
It's hard to pinpoint exactly where Gojo is at any given time in the manga. His whereabouts change as the story progresses and different scenarios unfold. It could be in a supernatural realm, a mission site, or interacting with other characters.