Doomsday Jigsaw Game

The rule of doomsday survival: Please avoid sadness, fear, and anger as much as possible; any negative emotions outside the tower can attract terrifying monsters. Without the white mist of any negative emotions for seven full years, I suddenly felt that this apocalyptic… was kind of friendly. (The introduction is weak, please see the cover of this book for more introduction) - Description from MTLNovel Details