an sclass adventurer banished as the tank of the party uses his slave release skill to build the strongest country in history

a brief description of the manga an s-class adventurer, banished as the tank of the party, uses his “slave release” skill to build the strongest country in history! 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!