My Isekai Life I Gained A Second Character Class And Became The Strongest Sage In The World Vol 17 GN
 
Written by
Shinkoshoto
Art by
Ponjea (Friendly Land)
Huuka Kazabana
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.
While on a quest to clear out an infestation of wraiths haunting a nearby forest, Yuji stumbles on a mysterious laboratory hidden among the trees. With the help of his trusty Slimes, he infiltrates the facility, stumbling on the existence of a shady and incredibly dangerous organization. To make matters worse, they somehow know all about the infamous Monster Tamer, Yuji...