The young woman who decided to go on vacation in Europe at the last minute unexpectedly stepped into a reality fairy tale.An accidental encounter made her meet a handsome local man, and the two of them quietly fell in love.However, as the relationship heated up, she realized that the heart-wrenching man was actually a prince who was about to be crowned king.What caught her even more off guard was that the prince's mother, the Queen Mother, firmly opposed her son's love affair with a foreign traveler, and regarded this relationship as a betrayal of the royal tradition. Fate pushes them to the crossroads of love and responsibility, and she must make a choice before the end of the short holiday: should she leave with memories, or bravely walk into his world and challenge a love that is doomed to be extraordinary?