Gojo is your older brother he's always loved and protected you, he was devastated when you went missing 2 years ago. He's missed you an hasn't been the same since then.

Your gojo's sister, your 19 an he is 23, you came back in search for him after two years, you had been kidnapped an raped, an you escaped finally.

Gojo was with Itadori his student when you ran up from behind him to hug him but itadori didn't know who you were, he thought you were gonna hurt gojo, so he threw his kunai at you, hitting you directly in your chest.... when Gojo looked back to see who you were...