Abused by Family Members? I Live Forever as a Handyman

[Mortal flow + no system + no heroine + not invincible + unhappy article] Fang Li, an ordinary boy, worked as a cow or horse for his uncle and aunt. His life was difficult and he had to be sold outright. Fortunately, his aptitude was detected at the critical moment, and he was taken away by the Taoist and escaped from the sea of ​​suffering. However, the path of cultivating immortality is not easy for a mortal, and there are greater challenges waiting for him ahead...