My Isekai Life 30. I Gained a Second Character Class and Became the Strongest Sage in the World!

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 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. A curse covering the entire continent is throwing the world into a food crisis! A special fertilizer called Mother Earth's Elixir is proven effective in order to avert the crisis. The only way to collect it is to extract the crystallized fertilizer from slain monsters and the members who ventured to Evildominus Island reconvene to hunt those monsters down! However, the island where Mother Earth's Elixir is produced is overcome with another curse that makes it lose its effect! Who is the one who spread this new curse?!