Responses
SPOILER not so big but spoiler still so I'll just write random things to fill the first three lines of the post so that anyone doesn't get spoiled okay that should be enough
He's the prince of another country and wants to marry the FL because 1) she's competent and 2) It'll strenghten the ties between his country and her territory
On the webnovel cover there's another dude who looks like a love interest. https://www.novelupdates.com/series/common-sense-of-a-dukes-daughter/
Does anyone know who he is who's read the webnovel