I Am Cultivating Immortality in Another World

Legend has it that there are immortals in this world, but Shen Han didn't believe it until one day, a flying sword passed over his head... However, what does this have to do with him? He is just a small person who just wants to live a good life and cultivate immortality. There are many bones on the road to immortality, but they will still be there thousands of years later. Cultivation to immortality is a road of no return...