Noroware Yuusha to Tokitai Seijo

The fantasy romance manga centers on the hero Mikage. After dispatching the dark lord, he is left with the parting curse of petrification. Having accepted that he will slowly die due to the curse, he returns with resignation to Crane, the saint he has won as a wife after his victory. Crane has a curiosity for curses, and perhaps that and her straightforward nature will open up Mikage's closed heart.

(Source: Anime News Network)