Oaths and Curses / Sanders Sides AU

Prince Virgil's life is complicated enough. He already has to balance his royal duties, a long succession of prospective brides, and a monsterous secret that threatens the security of his entire kingdom. Now he also needs to prevent a war. The only way to do that? Somehow convince the prince of his kingdom's sworn enemy to marry him. Prince Roman, however, has found another way to avoid the conflict that he believes to be superior: slaying the infamous Midnight Dragon. When he swears to kill the beast in front of a disguised Virgil, whom he believes to be a simple peasant, he unknowingly binds his promise to the Midnight Dragon himself. The two princes share one thing in common: their fates were determined long ago by their parents. They've both found a way to seize their own destiny, but this may lead to unintended, deadly consequences. At the crossroads between love and hate, peace and war, life and death, the two princes' choices will decide whether one's oath or the other's curse will break first.