Before Nina, who has returned to the private tank unit Rabbits, a gigantic object suddenly appeared, shaking the ground... It was the mobile fortress of Madogaldo, which destroyed villages and plunged people into fear. To defeat the 'Steel Demon' Madogaldo, who drove Nina into solitude as the root cause of war, tormented the people, and even took the lives of her comrades, the girls of Rabbits rise up. A complete comic adaptation of the work that won the Super Dash Novel Newcomer Award Grand Prize, proudly concluded!