Mysterious World Experience Record

This world is divided into two levels: mystery and reality, close at hand but far away. Many strange and mysterious beings are living on this huge planet, unknown to anyone who has nothing to do with it. These beings have different personalities and may have similar experiences, but they are definitely different. And our story will begin with a death. Ps: There will be many elements such as supernatural powers, myths, monsters, Cthulhu and so on.