Takuto Ira spent his brief existence confined to a hospital bed, with the civilization‑building title Eternal Nations as his sole pastime. His preferred faction in the game—Mynoghra—was notoriously intricate to master and leaned toward malevolence; additionally, he demanded the highest difficulty level. Following his premature demise, Takuto awakens in a realm eerily echoing Eternal Nations. He is reborn as the King of Ruin, ruler over Mynoghra itself. Beside him stands Odei no Atou, the default hero unit of his chosen nation. Recalling every clash they shared, she vows unwavering allegiance to Takuto anew. As Takuto sets about reconstructing Mynoghra from the ground up, his initial tactics stay the same: conceal himself, steer clear of conflict, and guarantee survival at all costs—paradoxical for a tyrant destined to dominate the world. When he shelters the beleaguered Dark Elves escaping annihilation, a nascent empire forged from an unknown gloom begins to emerge. In this new dominion, Takuto's cunning and compassion forge a fragile alliance with the shadows.