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! TIME TO SET SAIL FOR FEARSOME FOES AND FERTILIZER! Yuji Sano was a normal guy working a soul-sucking nine-to-five job when he suddenly found himself transported to a fantasy world where he restarted his life as a Monster Tamer. After befriending the Slimes, Yuji is quickly able to gain a second character class, ranking up his stats and learning new skills as he encounters one surprise after another. After talking with Father Steyl, Yuji realises there might still be a chance for him to take down a Truedrake. His journey as he tries to figure out how to do so leads him to Evildominus Island, home to a precious natural fertilizer known as Mother Earth's Tears. In order to take on his next quest, he'll have to find the guild... which ends up being on a gigantic ship! What monsters await on the notoriously fearsome island?!