Yun Su, a principled regent, lived by a code of honor that demanded the repayment of bot kindness and vengeance. His greatest debt of gratitude was owed to none other than his destined nemesis, the Martial Regent. In a twist of fate, even as he was on the verge of death, the Martial Regent chose to protect and save his life. Perplexed by this act of selflessness from the man of noble status and immense wealth, Yun Su found himself at a loss for how to properly reciprocate. With no other means at his disposal, he decided to marry him.