You don't accept it, that's your business. Is it necessary to get so angry and throw a tantrum?
Li Jiujiu is of a gentle nature, yet she can be quite assertive towards people and things.
When she is easy to talk to, she will accommodate you; but if you get sarcastic, she can also get ferocious, baring her teeth and claws at you.
"Look at how sister is speaking, in this pugilist world, we are all sons and daughters of the Four Seas and Five Lakes.
I have no familial ties with you, nor do I have any connection with your precious son.
Calling you 'sister' shouldn't be inappropriate, right? What are you mad about? Or perhaps..."
Li Jiujiu pretends to be surprised and covers her mouth: "Do you fancy me for my beauty and want to propose a marriage for your son, expecting me to be your convenient daughter-in-law?"
Ying Ji's face turns ashen: "If you're a flower, then from now on, even cows would dare not lay manure."
