Responses
I know the most easy way is to marry with a noble family or be born into one (but that mostly just lucky and not happen often)
yeas this story is very far off from reality for the sake of the "romance" ╮(￣▽￣)╭
I did not know you could buy a noble status. You probably can't. To be a noble you either have to be lucky to be born a noble, marry a noble or be really successful and climb the social through your success.
I know that these stories have little to no background research but that was plain ridiculous.
Still, if you can buy one in this story, you go man! Marry her