Do things like wraiths and ghosts exist?
There is no precise and unified answer to this question.
There are two dimensions in this world.
One side is the materialized three-dimensional world in which human beings live; the other side is the special dimensional spiritual world that is on the same parallel line but cannot be seen by ordinary people in two dimensions. As the name suggests, most of the inhabitants of the spiritual world are souls. After ordinary people die, they enter the spiritual world and become souls who can see the present world but cannot see it in this world. The soul in the spiritual world itself has no power and cannot affect anything in the real world. However, due to some souls with different wishes, they began to have a level gap through killing people and other methods such as massacre in the real world, and gradually began to threaten the normal life of ordinary people. As a result, people with special abilities appeared sporadically. They could see all existences in the spiritual world and harm them. They were responsible for protecting the safety of ordinary people. They were fighting against those dangerous ghosts all the time, and they were always in dire straits.
People call these special abilities—
Crossovers.
(The script "Spirit Eater" in the Yu-Gi-Oh fan "Starlight", true·BE, enter with caution).
Conception: