Orphan Huimin was admitted to a prestigious school with her singing and dancing talents, and met her current boyfriend Li Chen. However, just when she was enjoying her happy life, a sudden illness caused her soul to travel back to the Tang Dynasty, and she became Princess Taiping, who was known as the one who owned the world. A loving father and mother, a deep love between brother and sister, everything makes up for Huimin's lonely memory as an orphan in her childhood. However, the mystery of her life experience, the struggle for power, and the court's conspiracy once again disrupted her life... And emotionally, facing Li Lun, who was only tender to her, Xue Shao who was willing to die for her, Cui Shi who tried his best to attract her attention, and Li Longji who grew up under her wings, who will Huimin choose...