A Mage's Quest

In a world where parties and guilds go to defeat monsters that terrorise villages there are 4 types of people: Warriors who specialise in brute strength, Tanks who specialise in Defensive capabilities, Healers who focus on healing party mates And Mages who focus on the mystical side of everything.
Ryu the Ringed Mage has made a living for himself by making and selling rings that can channel magic through magic conduits and is content with not being an adventurer but when a group who need a mage come barging in his life is flipped upside down with trying to get the party out of his store and having them leave him alone.