Ren Eguchi 
Campfire Cooking in Another World with My Absurd Skill: Volume 15 [EPUB ebook] 

Everything seems to be going so well for Mukohda in the wake of the Church of Rubanov incident. Not only has he managed to buy the magic stove of his dreams, he’s also stumbled into a surprise reunion with some old friends: the adventuring party Ark! The only thing that could possibly ruin the trip would be if, say, Fel revealed the location of a nearby, almost-untouched dungeon, and the members of Ark decided that they wanted to come along for the ride. But there’s no way that could happen, right?

Oh. Oh no.

And just like that, Mukohda’s off on another dungeon-crawling adventure that he’d really rather have no part in! Worse still, the thing about unexplored dungeons is that you never know what you’ll find in them…and the discoveries awaiting the party in this one will blow any ideas they had about what a dungeon is supposed to be clear out of the water!