A fantasy world serves as the stage for the nation-building simulation game "Eternal Nations."
In this game, the legendary player Takuto Ira once claimed the top spot in the user rankings.
However, while hospitalized, he suddenly loses consciousness.
When he awakens, Takuto finds himself in a world similar to the game.
There, he encounters Atou of the Filth, the unit he had cherished the most in "Eternal Nations."
At that moment, Takuto decides: "Let's build a nation. A kingdom for just you and me."
Together with Atou, Takuto establishes "Mynoghra," a nation of evil.