Find me this bl manga (shounen ai? Can't remember). It's about this omega given to another...

Find me this bl manga (shounen ai? Can't remember). It's about this omega given to another kingdom as a bride; practically sold off. While his partner—the seme—was still a child when they met. As the story progress, the seme's brothers or family plots his death,.A huge timeskip then happens where the seme's now an adult and they meet again after the omega leads a revolution against the seme's kingdom. However when I last read it, the seme's reappearance is still yet to be known by the people from his kingdom who had 'killed' him. 0:)