The dignified Prince Min fell into a black hole during the war and came to the modern city of the 21st century. Strangeness, curiosity, pressure, ridicule, how the prince should adapt. What kind of opportunity did he have to meet that mysterious woman? How did she help the prince return to the prince's country to rejuvenate the country. What kind of relationships will they develop and how will they deal with their respective families. Is it staying together, or is letting go also a kind of love?