After Pangu created the world, a delicate balance was formed between heaven and earth.However, in order to stabilize this nascent space, Patriarch Hongjun decided to take a major move.He took the yin and yang of heaven and earth and used the power of the universe to refine them into an invincible divine sword - the Xuantian Divine Sword.This divine sword is erected on the top of the Nine Heavens. Its duty is to protect the people of the world and ensure the peace of the world.

However, on a sunny day, an unprecedented fierce battle broke out in the heaven.The duel between Donghuang Taiyi and Demon Emperor Jun shocked the entire heaven, and even disturbed the Xuantian Divine Sword who was practicing at the top of the Nine Heavens.During this fierce battle, the powerful spiritual powers released by Taiyi and Dijun came together and accidentally hit the Xuantian Divine Sword.Impacted by this powerful force, the sword body and scabbard were knocked off the earth, and their legendary journey in the world began.

Jian Shen was born in the Zhou Mansion in Xingxiang Town and became the son of the Zhou family - Zhou Qian.However, this birth caused Zhou Qian to lose his original memory and spiritual power, and became an ordinary boy.At the same time, the scabbard fell into a peach blossom forest with its memory and incomplete spiritual power. Because of her good deeds of saving people, she was revered as the Peach Blossom Fairy by the world.

Although Donghuang Taiyi severely wounded Demon Emperor Jun, the latter did not give up his obsession with the Xuantian Divine Sword.In the process of escaping to the human world, Demon Emperor Jun accidentally discovered the location of the sword, and attempted to control the Xuantian Divine Sword to wipe out the entire Zhou family to relieve his hatred.

Zhou Qian continued to grow in the human world and gradually awakened the magic power in his body.He is determined to embark on the path of cultivation, not only to find his lost memory, but also to protect his family and the world.In the process of slaying demons, Zhou Qian met the demon slayer Ling'er, and the two became close friends and faced various challenges in the world together.

After going through various hardships, Zhou Qian finally recovered his memory and learned the origin and mission of Xuantian Divine Sword.At the same time, he met his destined partner - the Peach Blossom Fairy.The three of them joined forces, relying on the sword intent contained in Zhou Qian's body, the spiritual power of the Peach Blossom Fairy, and Ling'er's demon-killing skills, and finally defeated the demon Emperor Jun and protected the peace of the world.