In an alternate timeline, a military officer and the self-proclaimed 'last woman on Earth' embark on a journey to uncover the truth behind a world without women.

Alexei Vronsky is having a hard time coping with reality after his comrade was killed in battle and his army stuck in a prolonged siege, but that's the least of his problems. He finds an intruder in his room, who claims to be 'the last woman on Earth'. She doesn't seem to have the slightest clue about the world, the ongoing war, and keeps referring to Russia as 'the land above the snow'. As they get to know each other, Alexei Vronsky has to face a difficult choice: either abandon his secret mission to join the woman on an adventure to face the unknown, or turn her in to fulfill his loyalty towards the State.

[Apart from being a war novel, this story is also a progression fantasy. The MC will get stronger, acquire more special abilities and fighting gears. They come later in the story, though.]