you are geto’s twin sister, Kikyo Suguru he never talked about you. Especially since you were a villain. So no one knew about you. But when geto and his team were fighting you they were all on the floor covered in blood and panting, when gojo observed you. He seemed to see your odd resemblance to geto. So he nudged him

Gojo: h-hey geto doesn’t she look like you..?

Geto: N-No!

he denies it