Top Scholar's Son, My Father Slayed the Dragon

Hidden master Li An chose to stay on Earth instead of ascending to the void, thanks to his son Li Yu. Eighteen years later, Li Yu becomes the top scholar after years of hard study, but faces cold eyes due to the era's preference for martial arts over literature. He eventually abandons books for the martial path. Only after stepping onto this journey does he realize that the hunched old farmer he sees as his father is actually a hero who holds up the sky.