Those Years When I Was Impermanent in the Earthly World

What is a human being? What is a ghost? Humans are just animals walking on the earth, the rulers of the earth. Ghosts, some people believe are formed by brain waves emitted after death. Some people think that the ghost is a ferocious and violent ghost. But... Is that really the case? I will tell you all the weird things I experienced in the first person... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.