Then
Spoiler!
Tia met with Perez and since nobles were watching them, he kissed her cheek and Tia didn’t stop him and when Perez asked why she shyly replies that people are watching 🤭 then Tia's focus is on Astana the entire time because the Empress and imperial knights were her main target for the banquet.
She made sure to provide Astana his favorite alcohol to make him drunk so that he can start a fight with Tia and then she challenges him for a duel and tells him that she won't fight him because he is drunk so he should send a representative and she will send one. So Astana sends his strongest knight and Tia chose Ramona for the duel and of course Ramona won and everyone started to acknowledge the Brown family’s swordsmanship. (Note: this fight and all happens in the next few chapters)
I like to post spoilers for the stories I find interesting because I don't have much time to read novel due to busy schedule
you will find me in most romantic historical manhwa comment sections 
you will find me in most romantic historical manhwa comment sections