. . .

This is a gospel for all mankind, but not for me. Everyone will gain some abilities or something weird when they are eighteen years old, but only me has not changed at all. This is a disaster for all mankind, and of course for me. Anyone can die in this disaster. Since that day seventy-four years ago, the world has become like this and more. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.