so i'm a spider, so what?

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Across
  1. 4. the angel who powers the system
  2. 5. a victim of bullying who reincarnated as a vampire
  3. 8. the fan name for the protagonist
  4. 9. a reincarnation who became depressed and eventually went insane before being recruited by the demons
  5. 11. the descendants of humans who modified their bodies prior to an apocalypse that occured 800 years before the current story
  6. 12. the amount of letters in the death goddess' name
  7. 15. the author's name
  8. 17. the reason mortals can use magic
  9. 19. the hero and another reincarnation
  10. 20. the protagonist's grandmother
  11. 21. a race of gods whose lesser copies are considered to be powerful monsters
Down
  1. 1. a former bully who reincarnated as a dragon and changed her ways
  2. 2. the species the protagonist is at the start
  3. 3. a genetically modified species that wishes to conquer the planet
  4. 6. the shortened form of a draconic deity's name
  5. 7. the descendants of the protagonist
  6. 10. the ancestor of all elves and the main antagonist
  7. 13. the second to last form the protagonist takes
  8. 14. a "species" of reality warping humanoids who are considered the end goal of evolution
  9. 16. the genre of the story
  10. 18. a giant labyrinth that allows travel between two continents which contains countless deadly monsters