The Tenth Line begins with a spoiled princess on the run after being kidnapped from her home by a mysterious cult. She escapes into the wilds, with the cultists in hot pursuit, and reluctantly enlists a pair of traveling non-human beastfolk to aid her in returning home, promising them rewards of vast riches and fame. But, with the long-prophesied end of the world apparently right around the corner, can she make it home in time to be with her family before the end of days?