From Old Country Bumpkin to Master Swordsman manga volume 1: My Hotshot Disciples Are All Grown Up Now, and They Won't Leave Me Alone was written by Shigeru Sagazaki and Tetsuhiro Nabeshima and art by Kazuki Sato.

Middle-aged Beryl Gardinant has only ever accomplished one thing: running a humble sword-fighting dojo in the quiet countryside. But when he's paid a visit by his former pupil, Allusia, he discovers that she has become an elite commander—and she's hardly the only ex-student who's a renowned warrior! Now forced by Allusia to become a special instructor to the strongest order of knights in the kingdom, can Beryl reach his full potential even though he's an old man?

From Old Country Bumpkin to Master Swordsman manga volume 2: My Hotshot Disciples Are All Grown Up Now, and They Won't Leave Me Alone was written by Shigeru Sagazaki and Tetsuhiro Nabeshima and art by Kazuki Sato.

Old swordmaster Beryl Gardinant has become a special instructor for the order of knights. His former disciple Serena, now a black rank adventurer, asks him to help her go on a dungeon attack. Though he has almost no dungeon-attacking experience, Beryl accepts her request. But when representatives from the adventurer's guild doubt his strength, he somehow ends up dueling Serena…?!

From Old Country Bumpkin to Master Swordsman manga volume 3: My Hotshot Disciples Are All Grown Up Now, and They Won't Leave Me Alone was written by Shigeru Sagazaki and Tetsuhiro Nabeshima and art by Kazuki Sato.

After losing his sword in a deadly battle against Zeno Grable, Beryl reunites with his former apprentice, Baldur, who has become a blacksmith. Baldur was asked by Serena to forge a new sword for Beryl from the felled beast's talons, and while Beryl initially declines the offer, he is moved by Baldur's enthusiasm and decides to accept the sword. Then, a pickpocket girl appears in town and targets Beryl!