Thanks for any help to start off with. I am looking for a manga in which the MC is transported to another world to marry the queen. He is a business man and basically he is like a cousin removed fifty times. MC takes her up on the offer to become a house husband/king. I know there has only been about a half dozen releases and can't remember the name. The last chapter I saw brought in the head of the palace guards' sister. Thank you again for any and all help

Risou no Himo Seikatsu

~4400 manga completed
~1700 ongoing...