I'm looking for a manga where the two guys knew each other from school, the seme was some rich popular guy..

I'm looking for a manga where the two guys knew each other from school, the seme was some rich popular guy.. anyway (i think a few yrs later) the uke's sister is suppose to marry the seme to help their fathers company but the brother (uke) takes his sisters place ??? thanks! (▰˘◡˘▰)