Seven years after fleeing the Herbet Empire to escape the control of her selfish mother, Rosena Estalot is forced to return for the sake of her ill son, Illion, who desperately needs treatment. Back in the empire she once abandoned, Rosena unexpectedly reunites with Yerhan, the empire’s third prince—and the father of her child.

Faced with the sudden reappearance of the woman he never forgot, Yerhan proposes marriage in an attempt to keep Rosena and Illion by his side. However, Rosena has no desire to become entangled in imperial politics or high society again, especially if it means confronting her mother once more. Reluctantly, she agrees to the marriage under one strict condition: they must eventually divorce.

While Rosena remains determined to keep her distance emotionally, Yerhan refuses to give up on her so easily. As they begin living together once again, unresolved feelings, past regrets, and lingering affection slowly resurface between them. The question is whether Yerhan can break through the walls Rosena has built around her heart before the temporary marriage reaches its promised end.