Konosuba: God's Blessing on This Wonderful World!, Vol. 12 (light novel): The Knight's Lullaby — Natsume Akatsuki

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…