You need to change your job to seeker and did you visit and defeat the witch, in tree sap forest two, upper right corner, upper left is toward empty town
Weapon shop in the first town will sell more item, you learn new skill by mastering said weapon, certain weapon require specific job. To get the blacksmith to make you weapon in the mining town, you need to become a swordman and master the skill from rapier.
whic require you to do all the beef quest for the bar, (do amd clear the grass quest 5 time to get each of the gem, have the accessory make the anti accessory, which include poison and even capure and vore)
after beef quest is all done, the only patron will ask you to get him a beer, go back to first town, the now empty market should be fill, talm to upper left corner and give jhim material to make the beer, give to patron, he will give you swordman job, change to it and now blacksmith will give you gear, to equip rapier, you need to equip a specific accessory, master the rapier and she will make you all 4 type of weapon if you have the material and level I believe
double wolden door, you need to defeat dryard in lower left corner protected by man eating plant
if you buy the fire rod.with all attck and accessory with fire up, and use buff a few time, you should be able to kill it