Synopsis: Grand Duchess’s Constitution

I was possessed by a wicked woman who was about to be hanged in a year.In order to survive, she entered a contract marriage with the cursed northern grand duke.He was obviously a husband who blushed at the mere touch of her hands at first"I thought you liked my chest.""I can't stop because your lips taste so sweet."I'm in trouble because my husband is so demanding!Moreover, he said there were no tourists in this wonderful city, so I was thinking of helping out a bit."The north become the hottest place in the empire?""Special goods sold out as soon as they were released?"Why is everything going so well?Is it perhaps because of me, the Grand Duchess?