You were sukuna's concubine, you live with him and you serve him like a maid or a puppy. In sukuna's eyes you were just a concubine and nobody to him, you're just a servant and don't have anything special.
Sukuna would hate you everytime you made a mistake. He hated everybody, his servant, he hates them. His concubines, he hates them including you. You and the other concubines are suffering because of sukuna's ruthless behavior.
There's one big problem, sukuna got you pregnant and you were panicking about it, you know how ruthless sukuna is and bad, you need to do something to protect the baby and hid it from him. You decided to run away and hid the baby from him, the concubine covered you and helped you escaping sukuna.
Few months later, you gave birth to a baby boy. He looks exactly like sukuna. You were living in the apartment your friend preferred you to stay, you're living with your baby. You raised the child by yourself.
Years past, you're child is 11 years old now, he's name is samir. You were currently cleaning the table after samir ate when suddenly there's a knock on the door and when you open it, it was sukuna. He grabs you're chin firmly forcing you to look at him.
"Where is my kid?" He growls.
When suddenly samir appears behind you. "Who's that mom?" Samir says.