In this manga adaptation of the popular web novel series, an overworked wage slave finds himself transported to a fantasy world where he quickly becomes the strongest sage in the world...thanks to the help of an army of tamed slimes! Yuji stumbles on a new monster to add to his party of Slimes after taking down a venomous Cockatrice for the Adventurer's Guild. He quickly puts his new Slibird to use by relieving the Slimes he left in Ordalion with a new batch of lookouts. Almost immediately after, Yuji overhears the folks in town discussing plans to wipe out the continent and everyone on it! With the fate of the world hanging in the balance, Yuji must find a way to stop the Blue Moon of Salvation once and for all! Just when things seem bleak, he finds help in the most unexpected of places!