In a chaotic world of immortal cultivation, the young Xu Qingchuan and his younger sister, Xu Xiaohe, depend on each other to survive. To save her gravely ill older brother, Xiaohe sells herself in exchange for a bowl of porridge and half a bag of coarse rice. Forced to watch his sister being taken away, Xu Qingchuan vows to embark on the path of immortality and earn enough to buy her back. However, upon arriving at the Qingyun Sect, he is tested and found to possess the worst possible Five-Element Mixed Spiritual Root, leaving him with no choice but to sell himself and sign a contract of servitude, becoming a lowly servant at the mercy of others. Unexpectedly, a mysterious, damaged bronze platform changes his fate. With the powers of purification, synthesis, and even deduction, Xu Qingchuan begins to obtain everything others desire—and even the things they don't.