A Mortal's Journey to Immortality: Starting as a Sword-Forging Servant and Ascending to Immorta

Her childhood sweetheart ascended to the top as the Holy Maiden of the sect. Dressed in celestial robes, she severed her centuries-old ties with the world, leaving behind only a jade hammer and the words "Our paths diverge," before turning and departing.
Zhou Lingxuan, a low-ranking servant disciple of the Heavenly Sword Pavilion, has a useless spiritual root in the Five Elements and is nearing the end of his lifespan. He has spent a hundred years forging iron and is ridiculed by thousands.
The world laughed at his foolishness, clinging to a pile of ordinary iron, trying to knock on the gate to immortality; the sect elders abandoned him, and his peers insulted him, regarding him only as a worthless, rotten piece of wood clinging to life.
Ninety years of day and night hammering, a million pieces of ordinary iron have been forged!
With his mortal body, he defied the heavens and completed the ancestral precepts that no one in the sect had achieved in a thousand years, summoning the sect's Heavenly Sword to appear in the world and shaking the entire immortal sect!
He forged the Dao with ordinary iron, ascended to heaven with scraps, and endured for a century to defy the path to immortality!
Those who abandoned me in the past, I will surpass them a hundredfold!
What if there are no immortals in the world?