Responses
doesn't exctly fit the description, but it's kinda similar,,
http://www.mangago.me/read-manga/gochisousama/tr/93434/page/154/
Oh it was right.
Do any one remember a manga were the same was a lord and ike approaches him to save his sister because it was a custom there that women's of that area should be presented to the Lord first
It was a yaoi where the uke when to the seme's apartment to replace his sister who was either married to or engaged to the seme. The uke had black hair.