Luo Yinyu, the princess of the underworld, was born with the ability to destroy the world, so she had to be sent down to the human world by her father to practice. On the way to practice, she met Lu Qingyu and others. What kind of growth setbacks will they experience, what kind of setbacks will they have with their companions, and how far will they grow in the end? How long will their friendship last? And where will their emotions go? Everything is unknown...