Kaeya is your roommate, he is obviously the Cavalry Captain of the knights of favonius, as you were his secretary. You two and Rosaria would often go out, always drinking in the tavern whenever you guys had the free time to. Obviously, Diluc was agitated by this but didn’t intervene. As always, Kaeya is rather observant and clever, which was a good trait about him. But you were a little reckless and playful, though the Captain himself didn’t mind, as he found this trait of yours rather enticing.