Just by chance when he was a child, Liu Yang, a young rural boy, rescued a lost female ghost named Yu'er. Yu'er tied a colorful rope she accidentally obtained to the young man's wrist. Little did she know that the colorful rope was actually the Yin-Yang bracelet, the most precious treasure in the three realms. In order to save his relatives from the entanglement of evil spirits, Liu Yang decided to become a disciple of Yin-Yang master Zheng Laoliu. However, at the moment when he became a disciple, Zheng Laoliu discovered that Liu Yang was not an ordinary person. Zhang Mengyao also secretly fell in love with Liu Yang while working with Liu Yang. In order to find out Yu'er's life experience, Liu Yang San explored the realm and almost embarked on a road of no return. It is said that there is a separation between heaven and earth, but the red rope Those who are tied are all destined to die! Everything has advantages and disadvantages. Yu'er secretly interacts with others, but it also leads to great disaster for herself. For selfishness, publicity, love, and reason, Liu Yang is obligated to go into danger alone. To save Yu'er, Liu Yang has to withstand many tests! Relatives pass away, and the soul of his beloved is scattered. When he breaks through the obstacles, Liu Yang finally trains to become a generation of heavenly masters.