This manga fills in the gaps between the Tiger & Bunny TV series and its films, following Kotetsu Kaburagi and Barnaby Brooks Jr. through side cases and quieter moments the main story skips over. Rather than retelling the anime, each chapter builds outward from it, expanding on Stern Bild's hero roster and referencing events from the movies as they were released. A separate sequel comic later continued the format alongside Tiger & Bunny 2.