The Strange Adventure of a Broke Mercenary (Light Novel) Vol. 9

INTO THE DRAGON’S DEN Having made it to Lapis’s home, Loren finds himself tasked by her mother, Demon Lord Judie, to destroy a dangerous artefact by throwing it into a nearby volcano.
Unfortunately, an old foe has his sights on the artefact in question. And as if that wasn’t bad enough, the volcano just so happens to be occupied—by an ancient dragon!
Series Overview: One by one, the mercenaries who raised Loren fell in a terrible, bloody battle. The lone survivor in a hard world with only his wits and his sword to his name, Loren hires himself out as an adventurer. His new party, however, proves all too willing to run headlong into danger using him as their meat shield. Only Lapis, the party’s sly priest, sees his true worth, just as Loren sees hers. They must rely on each other, or else neither of them will live to see the end of their first adventure.