I'm liking it so far
So the nobility rank is : knight, baron, viscount, count, marquess, duke, prince, archduke, crown prince. Her family is marquess, so I don't get why the fuss "oh I've been invited to a high nobilityblablabla"... she/Liam IS high nobility/aristocracy !
If saintess n yoosung become couple, they would be cute to be entertained