Handyman Saitou In Another World (Manga) Vol 02

Saitou's come to be a valued member of his party, but after he discovers a hidden cavern, swarms of adventurers descend upon the labyrinth in a frenzied search for treasure. There, Saitou's honesty and compassion will show even the most selfish and ruthless dungeon-delvers what a simple handyman is capable of! Yen Press
(W/A) Ichitomo Kazutomo