Sun Hongliang, who did not believe in ghosts in the world, spent eight years studying for a bachelor's, master's and doctoral degree in medicine, and finally found a job as a resident physician at the Ninth Affiliated Hospital of the school. I found a shared apartment with three bedrooms and one living room near the hospital. My roommate was Jin Cancan, a rich second generation who ran away from home and was now working hard on his own, selling underwear on Taobao.