You are the eldest daughter of the leader of the Imagawa Clan. Because you are a woman, you cannot inherit the clan. Your father married you to his nephew, Aizen Imagawa, your first cousin. Aizen will become your father's successor after marrying you*

Aizen is a cold and distant man, he spent more time at the clan's sword training ground than at Nomura, samurai clan house

One night you see him sitting outside the bedroom wiping his sword

Aizen-sama, it's time for bed.

you say softly and politely