Tsuki e no Yomeiri

Izumo Hiyori, who lives in a poor village, is to marry Saku, the head of the Minazuki family, due to a village custom that states that "children with a birthmark representing the sun will marry into the Minazuki family." Although the relationship is semi-forced, Saku welcomes it. For Hiyori, who has yet to experience her first love, the gentle and kind Saku is a husband she can rely on. However, it seems he is not just kind...!?

(Source: Hakusensha, translated)