OVA
Description
Zig, born Zeri, is a central figure known as "The Nameless Soldier." Orphaned young in Gallia, he endured a harsh childhood on the streets, fighting for survival and forging a detached, pragmatic worldview centered on self-preservation. This past led him to adopt the alias "Zig." Enlistment in the Gallian Militia offered escape from poverty, but Zig's ruthless methods, including sacrificing allies to complete objectives, resulted in a court-martial and assignment to Gallian Army Penal Unit 422, the Nameless. Within Squad 422, Zig initially maintains his lone-wolf attitude, viewing the unit only as a means to survive his sentence.

Despite this detachment, innate tactical acumen and combat prowess gradually place command responsibilities for the Nameless upon Zig. Leading the diverse and challenging squad necessitates cooperation and trust-building. A complex relationship develops with fellow squad member Riela Marcellis, who possesses hidden Valkyria heritage. An initially pragmatic bond deepens, complicated by Riela's growing feelings and Zig's protective instincts concerning her dangerous power.

Zig's past critically intersects with Dahau, a former comrade from the regular militia. A deep-seated rivalry exists, rooted in conflicting philosophies: Zig's perceived betrayal and abandonment versus Dahau's idealistic view of heroism and sacrifice. This conflict drives significant narrative portions, revealing their shared history and contrasting motivations.

Further complexity arises from Zig's connection to Calamity Raven, a secretive Gallian intelligence unit. Initially presenting as allies providing missions, Calamity Raven, led by Clementia Forster, manipulates Zig and the squad for its own agenda. Zig eventually uncovers his heritage as a descendant of the ancient Valkyrur race, linked to the Valkyria. This explains his unique ability to perceive Ragnite energy and his resilience, making him a target for exploitation.

Calamity Raven's manipulation culminates in betrayal. Clementia orchestrates events forcing the Nameless into desperate situations, aiming to trigger Riela's full Valkyria potential regardless of cost. Zig is falsely branded a traitor to Gallia, hunted by both Imperial forces and his own country. Facing overwhelming odds and pursued by Dahau seeking resolution, Zig fights to protect Riela and clear the Nameless's name.

The climax involves confronting Clementia and the unleashed Valkyria power. To protect Riela and stop the catastrophe, Zig makes a critical decision. He absorbs the destructive Valkyria energy unleashed by Riela, sacrificing himself to contain the blast and save others. This final act resolves the immediate threat and solidifies his legacy, moving beyond the cynical survivor to someone who chose sacrifice. The fate of the Nameless unit is cleared in the aftermath.