Raised under the protection of love, Yosan, a brilliant former king, failed to save his kingdom from destruction. A tragic defeat on the battlefield leaves him deeply traumatized and disoriented. When fate brings him together with Reina, the cold and powerful queen, his life changes drastically. Reina "buys" Yosan on one condition: he must become her personal servant.
The initially cold relationship slowly turns into love. They build a small family by adopting an orphan. Reina offers a deal to train Yosan for her throne on the condition that he continues to serve her. Under her guidance, Yosan develops into a powerful and respected figure.
However, political intrigue and emotional battles overshadow their journey. When Yosan finally seized his throne, a harsh reality hit him: Reina, who is pregnant with his child, is mortally wounded while protecting him on the battlefield. In desperation, Yosan must choose between his throne or the woman who has changed his life.
