I agree with a couple of the above posters. This feels like a little cliff-hanger. The MC should be able to completely add Clara and Max to his little Harem. Then, too, the plane needs to land and he NEEDS to meet the outgoing Queen so that she can make the Official Announcement in regards to his selection as the next King. At that point, it could end without any real problems.
But to "end" it the way it is now, it feels unfinished along with being a cliff-hanger. In my personal view, completely ending on a cliff-hanger like this is never a good idea. A nice bonus would be, after MC is Crowned King of Grandeur Country, he takes the fight to the opposing country and conquers them. That way, both would end up under his benevolent Rule. Although, I think that, before he takes the opposing country, he takes care of the Royal Council first. There's no need to leave potential saboteurs to weaken his Kingdom once he's on the Throne