My Isekai Life Volume 23
転生賢者の異世界ライフ ～第二の職業を得て、世界最強になりました～, Tensei Kenja no Isekai Life: Daini no Shokugyou o Ete, Sekai Saikyou ni Narimashita
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!