My Isekai Life 14

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. Yuji begins looking into a brand-new type of threat that lurks on Evildominus Island, a dangerous place renown for the precious resource, Mother Earth's Tears. Yuji and his team of tamed monsters are able to secure several specimens using a combination of ice magic and unlimited Slime storage. As they continue their search, they stumble on an unexpected surprise deep within the island...

Volume 14 of the My Isekai Life manga series by Huuka Kazabana.