Go towards Capriton Summit from Great Hessian Tree and defeat Corniton Scouts. Collect Corniton Swords from them, then talk to Merchant Simon at the Great Hessian Tree. Use your quest tracker to see your progress.
Merchant Simon: It's a big threat to the humans that cabritos Merchant Simon: turned their back against us. They were on humanity's Merchant Simon: side with the kynari at the Kynari Forest. NakanoAzusa: I'm sad about the fact, too. I was here when I was NakanoAzusa: young and I still have my portrait an old cabrito drew NakanoAzusa: for me. Merchant Simon: The cabritos were guardians of peace. They only drew Merchant Simon: pictures but never tried to make any weapons. But Merchant Simon: now, they're armed with weapons trying to attack Merchant Simon: humans. NakanoAzusa: So they're good at making weapons as well. Merchant Simon: I don't think that's the case. It's very difficult to Merchant Simon: find steel to make swords in the area where cabritos Merchant Simon: are. I don't understand how they came to possess Merchant Simon: that many weapons in such a short period of time. HiiragiKagami: So someone gave the weapons to them? Merchant Simon: Yes, probably. If you happen to fight cabritos, could Merchant Simon: you collect their swords and bring them to me? If I Merchant Simon: examine the swords, I should be able to tell where Merchant Simon: they were made. NakanoAzusa: Oh, that would lead to the cause that made cabritos NakanoAzusa: turn violent, right? Merchant Simon: Exactly.
Reminder Dialog
Merchant Simon: What I need are the swords carried by Merchant Simon: Cornitons.