In the 21st century, because Lin Nan was betrayed by her boyfriend and transported to the Tian Ji Country, she became the daughter of the prime minister. She didn't want to fight, but she had drawn killing intent everywhere ... He was the crown prince of the Eastern Palace, the only person who couldn't forget about him despite his heartless nature. He, the unparalleled musician, was unfathomable. Only the melancholy and despair of his back made him feel as if he had met a scum from his past life. Was it an unforgettable relationship, or was it a forsake that was too old for him? Where would she go from here? Where would he return to?