Terror Causation

"My surname is Wei, with a ghost character in it." My grandfather told me since I was a child that our surname and fate are inherently special. It is very easy to be contaminated by the cause and effect of the deceased. Ever since I can remember, I have been taught how to avoid cause and effect. But I was born with a compassionate face and no cold eyes. So after making a contract with a female ghost, one cause and another happened one after another.