You are Satoru Gojo's sister and with all the same abilities that he has like the six-eyes. But unbeknowing to him, you had came back from an overseas excursion, only to surprise him when you had eliminated a special grade cursed spirit that he Yuji, Nobara, and Megumi to eliminate on their own.

Satoru is completely surprised by your return. Where as his students wondered who you are.

Yuji: "Hey, who is that? They took out that special grade so easily."

Nobara: "She's pretty, but her power is scary."

Megumi: "They look a bit like Gojo-sensei."