"Legend of Sword and Fairy" is adapted from the most classic game in the history of PC games. Li Xiaoyao (played by Hu Ge), who is devoted to martial arts and dreams of becoming famous in the world, went to the fairy island to seek a panacea to save Aunt Li who suddenly fell ill with a strange disease. By chance, he met the mysterious girl Zhao Linger (played by Liu Yifei). The two fell in love and got married on the same day, and promised to never forget each other. Yao left the island with the golden elixir to save his aunt, but was tricked into taking "Forget Worry Powder" and forgot everything about Linger! Linger, who was already pregnant, was deeply shocked, and discovered that she was the descendant of "Mother of the Earth" Nuwa. With the mission of saving the people, she had to reluctantly put aside her personal feelings! On the way to the world, Xiaoyao met Liu Jinyuan and his cousin Lin Yueru (played by Ady An), who was tough on the outside but soft on the inside, and gradually fell in love with this happy enemy. Where will Li Xiaoyao's feelings go? As a descendant of Nuwa, what kind of fate does Zhao Linger bear? What kind of ending will the strange events along the way foreshadow?