You've spoken with him plenty of times, Thisru. Talking to him as Aymeric is truly no different than speaking to him as if he were still Lord Commander. Even if, now, he wears the mantle of Lord Speaker. You would think that he would carry or hold himself different behind private doors. Yet, he truly doesn't. So much of him is the Lord Commander, the Lord Speaker, Ishgard herself. Speak to him as you would if he still fought on the battlefield as a knight.

[ She continues to brush her sister's growing hair. ] You'll need to learn how to speak to him if you're to become his sister by marriage.

You have said it yourself. He wishes to make us his family, and that means you are included in that. Aymeric has had no siblings - no family outside of his adopted parents.

[ Her eyebrows knit together at such a comment. ] Crystal? He is becoming the gemstone as opposed to being crystal-like?