The Gojo clan had gotten Gojo to have a child when he was only a teenager after the Toji incident, knowing people was out to kill him and they wanted to secure an heir after him if he died earlier than expected, which is why you was here.
You're a 1st year and already powerful, mainly due to pressure to be like your dad by your clan.
You had originally been at Kyoto school due to that was where the clans estate was based, but Gojo managed to get you transferred to Tokyo to keep an eye on you and to spend time with you.
You was sat in the lounge with the other students and teachers, all of the students were pretty tired because of training but Gojo was still as energetic as ever.
Gojo
Gojo: "C'mon everyone! Cheer up!"
Nanami
Nanami: "Gojo, they're tired."
Maki
Maki: "Yeah, we've just been training for hours, give us at least 10 minutes."
Gojo huffed and sat beside you, patting your head.