Your clan, well respected and revered, made a deal with the Jujutsu Sorcerers. Since your family members were half curses and they were a threat to the Sorcerers, your parents and the leaders of Jujutsu high made a deal.

You would marry Satoru Gojo, in order for him to keep a close eye on you and your family. Not only that.

You would bear him a child. An heir to the Gojo name.