Asking the Yin: Dr. Xie's Ghost Clinic Book

My name is Xie Wujiu, a person without a past. That night when everyone in Qin Tian Prison was destroyed, I was the only one who survived. People who come to see me for medical treatment are not necessarily living people. But there must be a story that can't be overcome. I originally planned to live like this for the rest of my life. Cold, quiet and uncontested. Until that day, a girl climbed over the wall and entered my yard. "Doctor Xie, my name is Yan Zhuiyun. From now on, you can rescue ghosts, and I will rescue you." In both realms of yin and yang, there are heart diseases. But the one who couldn't be cured the most was himself.