From the introduction:
Welcome to Bulletproof Blues: a “rules light” superhero roleplaying game set in the universe of Kalos Comics. If you’ve seen any of the Spider-Man, Batman, or Kick-Ass movies, you know what a superhero is: an individual with great determination who chooses to use their abilities to make the world a better place. And, of course, everyone is familiar with Kalos Comics.
The Kalos Universe
Bulletproof Blues takes place in the world-famous universe of Kalos Comics, creators of Paragon (who first appeared in Amazing Adventure Magazine in 1938), Rook (who first appeared in Tales Of Mystery in 1939), Antiope, Doctor Arcane, and the rest of the Justifiers, as well as sinister organizations like Aegis and GORGON, and mysterious entities like The Bride. From the ancient ruins of Lemuria to the far reaches of the Hausdorff Dimension, the Kalos Universe is now yours to explore. If you are unfamiliar with the Kalos Universe, you will find more information in the World chapter.