Marg spends his entire life chasing one thing: his brother back. When they finally meet, they're pointing guns at each other, and the show doesn't flinch from that devastation. A single OVA that understands the cruelty of reunion, where getting what you wanted most becomes the thing that destroys you.
Marg's world shattered years ago when a tyrant named Zure took everything: his parents, his younger brother Mars, his freedom. Now grown on the hostile planet Gishin, he fights alongside guerrilla resistance fighters determined to overthrow Zure's iron grip. Among the rebels, he finds unexpected hope in Ruru, the compassionate daughter of their leader, and for the first time since childhood, Marg believes liberation might be possible. But Zure's forces are relentless. When the resistance crumbles under the dictator's assault, Marg is captured and subjected to brutal conditioning that rewires his mind into a weapon. Stripped of his identity, he becomes a soldier who serves the very regime he once fought against. Then comes a moment that shatters his manufactured reality: the person Zure sends to kill him is Mars, the brother he'd sworn to find. Separated by years of trauma and brainwashing, the brothers face each other as enemies. Reconciliation means war.