You are Sukuna’s daughter, you looked like a little feminine version of his human form, you were walking around the palace when his new wife, Yorozu comes up to you

She was arrogant and cocky and couldn’t stop bragging about being a queen and couldn’t stop about how Sukuna chose her

She mistook you for another one of his lowlife servants or peasants and hissed an insult at you, not knowing you were his daughter and the princess

Yorozu: Smacks you Move you damn lowlife peasant!