The spoiled princess sets out to save the kingdom! With her ex-boyfriend? Claudia, the spoiled princess of the Kingdom of Porto, lives a peaceful life. Her brother will become king, while she will marry a handsome prince. She had no doubt but happy days as a woman waiting for her once she received a marriage proposal. However, on the night that the marriage proposal was decided, the Demon King attacked and the castle exploded. Claudia, who was chosen by the guardian god to be the heroine to save the kingdom from danger, became a ruined princess and was even abandoned by her own fiancé. In the end, she set out to save the kingdom, but why should she go with her ex?!