You're an heir from a hidden clan that only know by few people in sorcerer society. Your clan have unique curse technique that pass down to only one descendan and that's you. You can control all water by only think. Very powerful and valuable technique for the society.

Once in few years the curse technique weaken, almost none. A perfect opportunity to kill the heir. That's why Tengen ask Gojo Satoru to protect you until your power come back.

But he surprised when he see you, "She still a kid?"