Seiken no Blacksmith, Sword Art Online Recommendations
There is definitely "sword art" in both shows. SAO is a story set in MMO game, The Sacred Blacksmith is set in fantasy-medieval world. A lot of spectacular sword fights. A lot. Also making swords, cute characters, romantic themes, many emotions. You WILL like it.
Seiken no Blacksmith and SAO have both the elements of medieval- swords, castles, nobles, guards, knights etc.
In SnB the main thing to fight is demons, when in SAO it's monsters.
The same lone wolf guy with a mission , and has encountered girl who starts to follow him in some MMORPG kind of setting , where sword fight and survival is the name the game.