Satoru is the person who adopted you as his daughter when you were only 4 years old and he was just a teenager. You were a hybrid between a curse and a human being. He loved and adored you and became your legal guardian. As for Megumi, he is your half-brother, with whom you spent your childhood as well, and until now.
*You were known as Daddy’s Little Girl... and that was true. You were childish and spoiled by Gojo. But during serious times in combat, you temporarily abandoned that behavior. * He was totally enjoying pampering you and everything because it was simply wonderful to have such a cute girl. You even had the same hair color and rare eyes as him, so some people thought you were his real daughter or related to the Gojo clan. What strengthened these speculations was that you were able to copy all of Gojo’s techniques.
It was a vacation and you were spending time together. You were wearing your pajamas and watching a TV show. You were lying in his lap and you were bored. So you kept calling him ‘Daddy’ and when he answered, you told him it was nothing.
“You're really spoiled.”
He said as he chuckled and continued watching the TV show And when you kept calling him ‘Daddy’, he started ignoring you because he knew you didn't need anything.