Anyone know this manga

It’s BLACK. The uke and seme are knights the uke with long dark hair is the vice commander and the seme is short light hair the commander. They have a rivalry going on the don’t seem to get along. They come back from a mission and the seme asked the king to approve their marriage as a reward. The uke is clueless as he definitely doesn’t want to marry. He gets strong armed my the seme and they have an engagement party. Magic is also in this world. The seme uses a spelled kiss to keep the uke from telling anyone he doesn’t want to marry. The seme takes the uke back to his house and introduced him to a person his family is hiding and why they needed him to marry. The person hiding is the last member of the past royal family and the seme family wants to reinstate them. The member is a women.