The Coffin Bearer

Lu Yan awakened a superior-grade spiritual fetus at the age of seven and was once a cultivation prodigy under the spotlight. To protect his younger sister Lu Wan, who was afflicted with a strange illness and had little time left, he destroyed his own future and willingly became the lowest-ranking coffin bearer in the Corpse Division of the Spirit Suppression Bureau. Over six years, the label of a crippled prodigy clung to him like a shackle, with cold stares, ostracism, and endless exploitation never ceasing. Everyone believed his spiritual fetus had completely shattered, leaving no possibility for cultivation in this lifetime. — Description from novelcodex.org