After Lu Mu's spiritual root is destroyed, he works as a laborer in his family's alchemy room. By chance, he obtains a treasure that can turn junk into treasure. From then on, he quietly cultivates using discarded pills and abandoned weapons, and his cultivation soars. He encounters the gravely wounded Mu Qing and helps her give birth to twins, Li Zi and Li Ying. Mu Qing dies, so Lu Mu buries her and takes the baby girls in to be raised. But the treasure sustains Mu Qing's life, allowing her to revive and break through her cultivation. Meanwhile, Lu Mu secretly raises the sisters.
Later, the sisters catch the eye of the Feiyun Sect, and Lu Mu accompanies them there. But the sect's Grand Elder's son, Guo Meng, makes trouble for them because of their beauty. Li Ying is also deceived by Pang Xi of the Muxian Sect, but Lu Mu saves her several times. Years later, Mu Qing, now the leader of the Tieshui Alliance, searches for her daughters, only to be pursued and poisoned by the scumbag who killed her husband. Lu Mu steps in to help, freeing Mu Qing from her predicament.
From then on, Lu Mu uses his ability to turn junk into treasure to overcome one crisis after another involving Mu Qing and her daughters. He resists the schemes of treasure hunters and jealous rivals, and ultimately joins hands with Mu Qing and the sisters Li Zi and Li Ying to forge a path through every obstacle and reach the pinnacle of the immortal path.