Go Get the Calculator
What to kill and where to find the goals.
Repeatable: the items to hand in drop from the targets without limits, and you can run it again and again. Go kill those mobs and the quest comes along for free.
This is an exchange chain: the reward is collected as items traded at an NPC — the shop's full stock is not laid out here.
Story

Oh, yes, so I did!
I believe the reason my previous missions to the moon have not been successful has been due to calculation errors. Any miscalculation in atmospheric resistance, engine burn, or any thousands of other factors inevitably leads to disaster.
I need to get the latest model Calculator which has just been introduced in the village. I must get my hands on it! I am certain that this new technology will make my "18th Plan to Conquer the Moon" an unqualified success! Would you please get this Calculator for me?
Oh... So this the new calculator! Good work. I will reward you as promised. You don't mind if I test it first, do you? Wait just a moment... Hm... Is this how it you use it? . . . Argh! What's this? This is...! And they call this "new"? Ha ha ha! I'm sorry, but I have no use for this item. It only does simple arithmetic! I suppose you did your part, however, so I will fulfill my end of our bargain.
Here is 1500 Ade... Ah! Perhaps you would rather have the calculator? I will be happy to give it to you. You can either take the calculator or accept 1500 Adena.
Quest steps

You must travel to the Dwarven Village to obtain a newly developed calculator for the blacksmith Brunon, who has promised a considerable reward. The Trade Guild will have information regarding the device.
You learn that the calculator is in the possession of a female Dwarf, somewhere in the Dwarven Village. Go look for more information.
Clues suggest that the device is closer than you think. Keep looking for more information.
Hmm... A female dwarf in Dwarven Village is in possession of the calculator and the person is closer than I think? I've got it! I know the answer!

Blacksmith Silvera will give you the calculator in exchange for 10 gemstone beasts.
Collect: Gemstone Beast's Crystal × 10

Take the calculator to blacksmith Brunon.
This quest has no goals mapped: it is a guide task, there are no mobs in it.