The Strange Adventure of a Broke Mercenary Vol 3

The Strange Adventure of a Broke Mercenary by Mine. A Fantasy manga rated Teen, published in English by Seven Seas in 2022.

Loren is a mercenary with enormous skill with a blade, yet he finds himself alone, broke and out of work. When a goblin hunt with a party of overconfident rookie adventurers goes disastrously wrong, he escapes alongside Lapis, an enigmatic priestess, and the two are drawn deep into an ancient labyrinth crawling with monsters and secrets from ages past.