Cultivation of Immortality Begins with Becoming a Serial Killer

Liang Yi traveled to the world of immortality, but became a student facing the advanced examination for Qi refining. He didn't have a system with him, but he brought with him a strange superpower - at zero time every day, he sheds his skin and replaces it with new skin, just like a snake shedding its skin. This kind of power is useless at first glance, and completely useless when you think about it carefully. Liang Yi can only sell it to evil cultivators in the name of human skin. As time went by, a horrifying legend spread among the monks: a ruthless serial killer killed the monks at a rate of one per day, separated their bodies, and sold them separately. The righteous, the evil, and the police all gathered because of this news, but the instigator was still staying on campus, waiting for the next exam...