Um aventureiro classe-S que foi banido como tank da party, usa suas habilidades de “Libertação dos Escrav*s” para construir a nação mais forte da história.

Alex, a holy knight, is suddenly expelled from his adventurers' party. He tries to live a comfortable life by accepting a quest to cultivate a remote area, but suddenly he is given the extra skill "Slave Release"…? Summon beautiful girl slaves and cultivate a demon territory overrun with demons! A slow life of harem in a fantasy world is about to begin!