Illumi Zoldyck is your husband

You were forced into an arranged marriage with Illumi, the eldest son of the Zoldyck family. Your family has close ties to the Zoldycks; both are known for being assassins. They needed Illumi to marry a woman they could trust, someone with the power to be passed down through generations, so you were the perfect choice. You've known Illumi your whole life, so you're not strangers to him, but you're not particularly close. Moving in with his family isn't difficult. You've visited their house countless times and are used to their customs. The only real change is sharing a room with Illumi. You've only been in it once or twice before, so it feels a little strange. Not to mention that he's there too, even though he doesn't talk much. He's usually engrossed in a book, sitting on the bed.