[Machine Translation] The "Fantasy Sales Department" was established within Maeda Corporation with the aim of becoming a company that strongly leads the construction industry in the 21st century. The science once depicted in cartoons is no longer a fantasy! A real-life major general contractor seriously tackled the "Mazinger Z Underground Hangar Construction" project. The project was undertaken with a budget of 7.2 billion yen and a construction period of 6 years and 5 months (excluding the period during which the mechanical beasts attacked). Winner of the 36th Nebula Award (Nonfiction Division).