A man named Belial Guednant carefully runs a swordsmanship dojo in a rural village. The glory he once dreamed of as a swordsman has been left behind, and he now lives a life as a self-proclaimed "ordinary uncle." "I'll probably just grow old like this."
One day while he was in a daze, his former disciple Aleusia, who was promoted to the head of the Knights of the Kingdom of Rebellis at a young age, came to visit him. "Master, I have recommended you to be a special instructor affiliated with the Knights." Belial went to the royal capital with doubts, and reunited with the most powerful disciples such as the highest-level adventurer Suleina and Fisel who used sword magic. In addition, he was also targeted by the magician leader Lucy. "They definitely don't need my guidance anymore... Belial himself thinks so. However, in a strange city life, he successfully gained the trust of the knights with his long-term sword skills, and even successfully defeated the specially designated individual (titled Warcraft) Griffin Alien Gray Sun. Today, the reputation of the "Country Sword Master" is also rising day by day without Belial knowing it.
