Only a step away from their demise, the Regadonia Entente Alliance desperately push for a government-in-exile. Meanwhile, the notorious “Rusted Silver” Tanya von Degurechaff faces off against Colonel Anson Sue in another fatal battle that threatens to change the course of the entire war...and her chances of promotion!

The eastern front is a place where soldiers never sleep and artillery guns howl without rest. This quagmire is where the Salamander Kampfgruppe has been hurled once again, just another cog in the grand war machine of their fatherland. Still, there’s only so much one unit can do. As the fighting ramps up with renewed enemy attacks and a brand-new weapon that pitches the Federation’s quantity against the Empire’s quality, Tanya faces one of her toughest battles yet, making a certain visitor’s arrival a sight for sore eyes...

Time is not on the Empire’s side. It has become painfully clear that simply winning battles will not be enough to turn the tide of this war. Having no interest in sharing the fate of her country, Tanya immediately decides to do the only thing that makes sense—look for a new job! Of course, she’ll have to proceed with extreme caution, because her current employer isn’t some random company but the Imperial Army. As it happens, she isn’t the only one ready to do something drastic when push comes to shove...

At last, the long-awaited days of tranquility are here! Tanya begins attending war college, where she spends her time feasting in leisure. But who would've thought that a conversation with General von Zettour would lead to another turn of events...! Will her days of delicious bread and clean bed sheets come to an end?

As hinted at by Colonel Lergen's "thoughtful" words of advice, an attack on Dacia has been ordered by the Empire, and the fearsome power of the new mage battalion is deployed. Determined to unleash the power of modernity upon the enemy, Tanya prepares her freshly polished human shields for an all-out battle...There's no holding back with a resume-worthy achievement on the line...!!

When the average Japanese salaryman is suddenly thrown into in a world wracked with warfare and hardship by a supernatural power, they might first think to hide or run away. But not Tanya Degurechaff. A calculating and utilitarian man has been reborn as a child soldier. This young girl will do anything to rise in rank and find a way to live a life of comfort, and woe to any king, country, or god who stands in her way.

The Spearhead Squadron has sustained heavy losses in the battle against the new Morpho. Among the dead is Shana, Shiden's-Vice Captain. As Shiden swears revenge for her fallen comrade, Kurena, whose distress resulted in Shana's death, loses her composure entirely. To make matters worse, the Morpho has fled into the Holy Theocracy of Noiryanaruse. Now, Shin and company must set foot into this mysterious nation that even the United Kingdom and the Federacy are wary of!

When the Republican Army, led by Lieutenant Colonel Vianto, attacks the imperial supply base of Arene, the Empire’s top brass orders the 203rd to carry out an operation that Tanya herself proposed back in war college—the “Devil’s Protocol.” But what exactly are the fearsome contents of this ominously named plan...?

Extoled for her achievements in Dacia, Tanya makes her grand return to Norden! As the war escalates, so do the General Staff's expectations for the 203rd Aerial Mage Battalion (much to the young major's dismay). From a barrage of enemy formulas to communication mishaps with higher-ups, it looks like everyone in the world--be they enemies or allies--will stop at nothing to sabotage the former salaryman!

The Salamander Kampfgruppe has finally come off the front lines and is headed back west for much-needed R & R. The troops are more than ready to enjoy some peace and quiet after many long days flying missions on the eastern front. What they aren’t ready for is how unfamiliar it feels not to be surrounded by whizzing bullets and exploding artillery shells. For Tanya, though, this long-awaited return to the rear brings more disturbing realizations than respite. This vacation may be far more eventful than it has any right to be...