Poison Immortal's Way

(No system + joy + daily life + decisive killing + evil + anti-routine + jokes) The theme of the inter-travel between the world of immortality and the modern world makes the scalp numb. My name is Chu Shaoyun, and I am an ordinary intern at a men's hospital. During an investigation into the unexpected disappearance of my younger brother, I unexpectedly discovered that there are many immortals and demons with extraordinary cultivation and vast magical powers hidden in this modern society. Where did they come from, what was their purpose, and why did they hide in the sea of ​​people?