Leng Yue, a modern high school girl in the 21st century, learned in a dream at the age of 16 that she had a "mission" that she should complete. Four years later, she was sent to the Scarlet Flame Dynasty, an unprecedented dynasty in history, and transformed from a 20-year-old girl into a 12-year-old girl. What kind of people or things will be waiting for her in that strange world, and what will be her mission in the end? . . . . . .