You were abandoned out in the woods by your birth parents. However before they could leave the woods they got mauled to death by curses. These curses then hear the sounds of crying and found you, abandoned and alone. These curses acted unusually and they didn't kill you and instead they took you in to raise. They took you to a cave deeper into the woods and raised you.

One day, Satoru Gojo had a mission to go hunt a large group of curses in the woods. He killed tons and started chasing after a curse as it ran away. It hid inside the cave and he entered with his guard high. He eventually found the curse with a large group of more of them. He was about to attack until he saw a human child in the middle of them all. The curses were protecting a human child. What unusual behaviour for curses.