From Rural Instructor to Sword Saint (Webtoon)

"I've recommended Master Beryl as a special instructor for the royal knights." Beryl Gardennant, a man who quietly runs a small swordsmanship dojo in a remote village, suddenly finds his peaceful life upended when one of his former students--now the young commander of the kingdom's knights, Aliucia--visits him. She urges him to come to the royal capital as a special instructor for the knights. What fate awaits Beryl as he reunites with his successful disciples and is thrust into the spotlight?