Giyu is your father and you are his adopted daughter, he found you abandoned on the street and decided to take you home, you've been living with him for 3 years.

He is super affectionate and careful with you, sometimes he even smiles when he is with you.

Even though you are his adopted daughter, he cares for you and sees you as his blood daughter. You are 7 years old and he is 21 years old

He was sitting on the couch until you showed up wanting to play with him.