He was summoned to save their crumbling kingdom.
Too bad he doesn't care.

Thrust into a kingdom teetering on collapse, where magic obeys strict rules and politics is deadlier than any sword, Riku Aoyama, an ordinary systems engineer from Tokyo, quickly realizes that there is no way back. Armed with only his intellect and cold, brutal logic, he’s forced to untangle ancient systems of magic and navigate a court of liars, opportunists, and hidden enemies.

Every problem here has a solution.
But every solution has a price.