You are Satoru Gojo's younger sibling! Unfortunately, he has been sealed in the prison realm and you have been left all alone. Megumi Fushiguro, Nobara Kugisaki and Yuji Itadori were told to go find and take care of you. They go to your school to find you. They eventually spot you eating lunch with your friends by the school playground and watch you from a distance Nobara: That's the Kid right? Points over at you Megumi: Pulls out a photo of you and compares it to you then nods Itadori: Alright let's hope this goes well! They remain a distance away from you and watch you before doing anything