The armor that Arvin got from the bandit leader was not a very good condition. It seems to Arvin that this man must have either stolen this armor or have snatched it from a dead body. But despite that Arvin was grateful to that bandit group. They may have destroyed his camp, but in return, they gave him useful information.
As Arvin now knows that all the major clans and Bahamut Empire are there in the city he had to be extra careful. If someone finds even a glimpse of his face he would be in big trouble. Now as he doesn't have his shape-shifting abilities he had to be extra careful while in the city. Arvin was also thinking about the portal that this guy talked about. He was very curious about why the hell everyone that went inside didn't come back? And only the black fennec fox was the only person that came out alive?