Konosuba: God's Blessing on This Wonderful World!, Vol. 12 (manga)

Flush with cash, Kazuma's in no mood for adventuring. After all, what's the point in risking life and limb when he can just sit back, relax, and enjoy a life of luxury? But Darkness isn't quite ready to give up on the adventuring life, and after a one-on-one meeting with Alderp, she grows desperate to take on another quest! There's only one problem-they'll be up against a nigh-invulnerable hydra, and their chances don't look good...