Sword Shadow Breaks the Stars

I woke up as the worst blacksmith apprentice in the martial arts world. Before my master was forced to die by the sect, he only left me a rusty iron sword. They said it was rubbish, but I saw the stars turning upside down in the rust. When the young master of the Qingyun Sect crushed my sword shop, the rusty sword suddenly let out a dragon roar—— It turns out that this is the nameless sword that killed the Sword God forty years ago. Now, the entire martial arts world is hunting for me, the "rusty swordsman". But they don't know, I chop wood and swing my sword three thousand times every day, A crack has already been opened in the way of heaven. "You practice swordsmanship to seek immortality, while I practice swordsmanship——" The moment the rusty sword was unsheathed, the Nine Heavens Tower began to collapse. "Just to show the way of heaven in your eyes, Stepping on them became the steps for me to reach the top. "