Lost Spirit Files

Do you know how many people go missing every year? Do you know that most of these missing persons are never seen alive or dead? I know a group of people and accidentally joined them. They know the ancient secret technique of refining corpses and searching for people. They use a birth date and an item of the missing person. They use easy divination, Qimen Dunjia, ghosts and gods to make the missing living and dead invisible! One day, a seeker knocked on the door of this group of people. He said that his father died in a dangerous place and he hopes we can help find his dead father's body. If the job is completed, the reward will be huge. Should you accept this job or not?