Li Ping'an, a menial disciple of the Tongtian Sword Sect, has poor aptitude and little time left to live.
For sixty years, he has hammered iron day and night, clinging to a promise, only to see an old friend reach the summit while the two are parted by the divide between immortals and mortals.
At the brink of despair, his ancestral iron hammer awakens the power to forge the heavens. It can turn decay into spiritual vitality and refine the dross from all things.
In an abandoned hall where no one pays him any mind, he uses scrap as his resources and seeks the Dao with a mortal body.
He does not compete with the prodigies of the moment, nor chase a fleeting rise to prominence.
On the long road to immortality, only endurance and steadfast effort matter. With nothing but an ordinary mortal's bones, he cultivates step by step, and through years of hardship, ultimately gains an immortal body beyond compare.