In this story, it's revealed that all of the wars fought over the past 30 years were part of a Masquerade to keep the public in the dark about an Alien Invasion. The nations of the world are fighting the enormous alien monsters with a number of giant organisms called Category D's. One of these is Mana Eimiya, a 49.46-metre-tall girl whose job is to periodically come out of hiding and beat up incoming aliens, apparently with just her bare hands. A different kind of Boy Meets Girl story from Takeshi Azuma, a.k.a. Studio Kimigabuchi (the studio behind Neon Genesis Evangelion RE-TAKE).