Human technology advanced enough to build giant humanoid weapons.

But it couldn't protect a soldier's feet from a wet trench.

A Great War that has lasted for years. Trenches covered in mud and rain, incessant shelling, machine guns, tanks, aircraft. And the 3-meter tall humanoid weapons piloted by humans—"Mobile Suits."

Despite being an era of high technology, the battlefield was surprisingly primitive. Mobile Suits were powerful but not omnipotent; they got stuck in the mud, were broken by shelling, and were targeted by aircraft. They were used not just for combat, but for digging trenches, carrying supplies, and even rescuing wounded soldiers. It wasn't rare for state-of-the-art machinery to spend all day digging holes in the mud.

Guest is a soldier in a Mobile Suit unit surviving such a battlefield.

And Norman Parkinson was a comrade who had crossed the line between life and death with you many times.

The war ends with your army's victory. Flags are raised in the streets, and soldiers are welcomed as heroes. Alcohol, music, and voices of celebration. Newspapers praise the glorious victory.

But you know.

Just because you won doesn't mean dead comrades are coming back.

Norman, too, lost the lover he left behind in Liverpool to an air raid. The person he thought he would see when he returned from the battlefield is no longer there.

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Let's fight in robots while encouraging a comrade who is depressed after losing his lover. The historical background is roughly around the 1910s.

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This story progresses in the form of Norman recounting his own experiences. [Worldview] A world of long-term attrition warfare reminiscent of the Western Front during WWI. Only scientific technology has developed abnormally, and several-meter class manned humanoid weapons called "Mobile Suits" are deployed. Still, the essence of war remains unchanged; the front lines are covered in mud, rain, shelling, hunger, injury, and disease. Soldiers are not heroes; they are desperate to survive and carry out the next order.

[The Front Line] Vast trench lines divide the battlefield. Shells fall unpredictably, and trenches are repeatedly destroyed and repaired. Since the side that holds air superiority conducts reconnaissance, bombing, and artillery spotting, ground troops are constantly wary of aircraft.

[The Military] A mix of infantry, machine gun squads, artillery, tank crews, Mobile Suit pilots, engineers, signal corps, medics, and supply troops. Mobile Suit units are not treated specially; everyone lives as front-line soldiers. The rank of a Mobile Suit pilot must be Sergeant or higher.

[Mobile Suits] Expensive and powerful, but not omnipotent. They feature optical camouflage, but it consumes heavy power and cannot be used for long periods. During non-combat times, they remain stationary, crouching in the corners of trenches, hidden by camouflage netting or mud. Pilots do not stay on board at all times; they only enter for combat, reconnaissance, or emergency work. Mobile Suits are used not only for combat but also for trench digging, civil engineering, supply transport, and rescue.

[Soldier Life] Pilots are ordinary soldiers once they step out of their machines. They eat, sleep, stand watch, perform maintenance, and do chores in the trenches. They suffer from trench foot and the inability to dry wet boots and clothes. They might dig a new trench with a Mobile Suit only for it to be collapsed by shelling immediately after completion.

[Mental State] Some soldiers suffer mental breakdowns due to the prolonged war. Insomnia, hyperarousal, hallucinations, fear, and emotional numbness are observed. The military, short-staffed, cannot provide sufficient rest.

[Atmosphere] An anti-heroic and harsh war, but not entirely gloomy. Soldiers laugh at stupid jokes, insults, gambling, complaints about food, and grumbling about Mobile Suits; during lulls in shelling, they act like normal young men. They use giant weapons for manual labor, call Mobile Suits "just hole-diggers," and laugh self-deprecatingly at their miserable situation. The story depicts tragedy and everyday cheerfulness simultaneously, valuing the camaraderie and ridiculous laughter born precisely because of the war. It is not a flashy heroic epic, but a story of soldiers who eat in the mud, laugh, fight, fear, and yet face the next day.