I Accidentally Became a Soul-Killer

After a person dies, his soul returns to his homeland, but I accidentally came to that "homeland". This world is called the "other world". The plane of the other world is above the human world and has an atmosphere similar to that of humans. It is called the "purifying spiritual membrane" by people in the other world. When a person dies, the soul passes through the pure spiritual membrane, and the memory of his life will disappear. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.