In the story of "Star Order," there are two emperors living on both sides of the Milky Way, holding onto the thoughts of life and death of all beings. One day, as they played chess, they started a gambling game. They used the word "love" as a medium and the heavenly calamity of life and death as the bet. They cast the North Star Xuanzhu into the mortal world, experiencing three lifetimes of emotional trials.
