Su Changan, an orphan girl in modern society, unfortunately encountered a car accident two years after losing her lover, traveled to a different world, and was reborn as a seven-year-old girl, Lin Ruozi. Entrusted by the girl, she led a strong life, changed the girl's original lifestyle, lived according to her own wishes, gradually got rid of the haze of losing her beloved, and chose her true love. After all kinds of twists and turns, she traveled to the five countries in the world, and finally helped complete the great cause of unifying the world and passed on the throne to her younger brother. The two of them joined hands to live happily ever after.