Yay just what I wanted, a side story on how they met! I was under the impression that Yui didn’t know Fillel was royalty the first time they met but guess not, although I am going to also guess that the twins find out very quickly that the two of them become friends (I doubt Yui can sneak out without the two of them knowing lol)
There’s also the line from the former king, “so she’s his blood relative” and I wonder if “he” is actually her maternal grandfather and not her father. You know, the grandfather who says that he used to have a friend named Theo (who was apparently a handful) and whose house/bakery contains a veritable library of magic books (which admittedly could’ve been her mother’s from her school days, or could’ve been both of theirs).
Fingers crossed that my theory is proven right in volume three!