Starbreaker

At the awakening ceremony, a fire spirit pops out and complains that his “script is outdated.” So he has no choice but to recruit an amputee swordsman, a poker-faced medicine maiden, and an octopus that goes poof, then fight his way up from the lowest-ranked class.

He has barely seen off his corrupted mentor when he is back to grinding monsters for experience and starting a business to seize territory. Just as he finally gets a breather, the final boss blocks the door, waving a promissory note.

The good-for-nothing is moved to tears: “Screenwriter, did you give me the wrong script?”