Nokorimono ni wa Fuku ga Aru.

Nako is summoned as a sacred figure to an otherworldly realm but lacks the abilities her summoners hoped for. She is sent to reside in a secluded palace with her lady-in-waiting, Lynn. Later, she is commanded to marry an elderly earl known as a national hero. Upon meeting him, Nako is drawn to his calm and kind demeanor, while the earl, aware of his advancing age and limited time, finds himself unexpectedly attracted to her lively spirit. Soon after, he awakens to discover he has been restored to his twenties. The story follows the evolving relationship between the two characters from different worlds as they navigate this unexpected twist in their lives.