Reincarnated as a Shoe Sole, I Prove the Dao Through My Feet!

I, Xie Te, transmigrated into the sole of a shoe. After binding to the Stepping-Stone System, I can gain energy whenever the person wearing me changes shoes, proving my Dao through feet! And so, inside the school belle's Valentino heels, I frantically farm stepping-stone points; inside the CEO's limited-edition leather shoes, I make him tap-dance in public; even the park grandfather's health shoes conceal a martial arts manual... Until one day, a pair of cloth shoes covered in calluses steps on me. “Young man, want to be an immortal's stepping stone?”