General Esdeath, known as the most powerful warrior of the Empire, returns to the capital to lead the campaign against Night Raid, and to further the Prime Minister's agenda. She combines these two goals by having her subordinates assassinate the Prime Minister's political opponents and pinning the blame on Night Raid.
Night Raid is forced to take action, to preserve their name, and to save the officials who will be needed to rebuild the country. This leads to an Imperial Arms showdown on a luxury cruiser between Tatsumi, Bulat & Esdeath's elite warriors, the Three Beasts.
This volume's bonus comic has Tatsumi & Lubbock visiting the world of Watashi no Ouchi wa Honya-san(My home is a book store).