Lin Xiao is the "unlucky guy" in a mortal town. He accidentally obtained an old fairy sword and got involved in a battle among the immortals. He teamed up with the strange boy Huang Xiaogua and the amnesia heroine Su Miaoyin to go on a adventure together, making them laugh and cry along the way. The three of them teamed up to uncover the secrets of the fairy world's conspiracy, battled wits and courage, and faced off against powerful enemies while singing and laughing all the way. The bad-mouthed master is setting up a trap step by step, and many challenges are coming. After experiencing friendship, love, betrayal, and crisis, Lin Xiao finally grew into a responsible Xianxia, facing the situation in the world with a sense of humor. In the end, the three of them not only gained true love but also achieved self-transcendence on the road of protecting justice.