In the southeast corner of the town portion of Atlasdam is Theracio, who is being harassed by a moneylender. Make sure either H’aanit or Olberic are in your active party, as you will need use of their Path Action. The moneylender is literally standing right next to Theracio, so Challenge/Provoke him. He has a strength of four, so doing this still in Chapter 1 might prove a little challenging. Waiting until you get some better equipment in Chapter 2, as well as a secondary job class, might make it a lot easier. Once you defeat the moneylender, you will complete the quest.