In the future world, people have gotten rid of the shackles of material things, and the spiritual world has reached an unprecedented peace. The heroine returns to the ancient war-torn land thousands of years ago through the time and space laboratory, and meets the 15-year-old monk Luo Ti in distress. Luo Ti, who lived in ancient times, gave up the royal life since he was a child, practiced Buddhism, and ran around, hoping to eliminate the disputes in people's hearts through his own efforts, so that the hearts of the world are full of tolerance and love. Ai Qing, who has experienced the strong contrast between the two worlds several times, has a heart-to-heart with Luo Ti, and encourages him to strengthen his inner beliefs.