A legendary dragon's most prized treasure lies on the other side of a certain door. A starving Aletta wanders into the Restaurant to Another World and believes herself to be dreaming, but she's in for a shock when she wakes up the next morning.
Treasure hunter Sarah traces her great-grandfather's footsteps to a mysterious door in an abandoned mine. Heinrich must call for help when the fortress where he's stationed is under siege by monsters, but he desperately needs food to make it.