Nokorimono ni wa Fuku ga Aru.

Nako's been summoned as a sacred figure, but she doesn't have the special powers her summoners expected to make this "other world" a better place. She's sent away to live in a detached palace with Lynn, her lady-in-waiting, until one day, she's ordered to marry an earl who's said to be the country's hero. The thing is, he's over the age of 60....