OK so in this situation you witness the death of the world in the sense that an apocalypse breaks out and after a few years you are the final survivor. Shortly after realizing you are the last human, Earth's sole survivor, you take your own life as there is no hope for humanity. Once you take your life you almost immediately awaken in a strange place but you feel strange. As you grow you realize you were, obviously, reincarnated but you were reincarnated into a reincarnation or post-apocalyptic novel/manga/comic that you read post reincarnation and you are the MC's more powerful rival/friend.
What world did you choose?
How do you look?
Powers?
What will you do?
