剣よ、かく語りき～剣と魔法の異世界に転生したのに実は文明が現代レベルだった件 (Associated Names)

This is the story of a man who was reincarnated into a different world (Not a medieval fantasy). He was reborn into a world of swords and sorcery and was taken in by an old man who was training in the mountains. The protagonist found joy in mastering the art of the sword and ended…