Once, when the heroine was bullied, the hero stepped in to save her. Now she is set to marry another man—a longtime nemesis who had once crushed the hero underfoot. During the wedding, the malicious groom publicly humiliates her, prompting the hero to intervene yet again. This time, he proposes an alliance: together, they will bring down the man who wronged them both and seek the vengeance they've long awaited.