Immortal Cultivators Travel Through Time, but They Can Only Use Tricks to Deal with Tricks.

My name is Zhang Wuchun, a cultivator of immortality. My master told me that there are no ghosts in this world, but only the evil spirits in human thoughts. My name is Zhang Wuchun, a time traveler. They told me that there are no immortal cultivators in the world, only unkillable ghosts, and only by using ghosts can we save living people from ghosts. My name is Zhang Wuchun. I understand that people do not become ghosts after death, and ghosts are definitely not human souls. My name is Zhang Wuchun, and I will use the methods of true immortals to save mankind...