From Old Country Bumpkin to Master Swordsman

Beryl Gardinant, a veteran sword instructor, teaches at a rural dojo but had once aspired to become a master swordsman. He's now unexpectedly appointed as a special instructor for the knights of the Liberion Order. Beryl travels to the capital and reunites with some of his former students, who have become elite knights, a skilled wizard, and a top-tier adventurer. They seek his tutelage, which surprises Beryl, as he believes they no longer require his guidance.