Corpse on Earth

Humans built ninety-nine cities on a mysterious giant corpse that spanned the continent, and used its bone marrow to practice martial arts. Shen Li, a young man from the mining area, was born unable to absorb divine marrow and was regarded as a useless person who could never practice martial arts; until the day of the mining accident, he heard the first heartbeat deep in the bone cavity of the giant corpse, and discovered that the so-called martial arts of humans were just the organs used to refine oneself into a giant corpse bit by bit.