Who says armor can't be stylish? Not Frida! She brings fashion and function together in Eiyuden Chronicle: Hundred Heroes and gladly opens up an armor shop at HQ for your team to bring fashion to safety.
After you have fast travel, you can travel to Werne Village again. When you go left of the entrance of the village you come upon an armor stand with a pink and purple-haired woman, Frida, inside. Talk with her and she will style Nowa and decide she likes him. At this point, you can recruit her and she goes straight to the castle.
You can now build the Armor Shop which will be on the second floor of the Trading House. Frida can be found here running the shop where you can buy new armor for your team or sell.