The mysterious girl that showed up out of nowhere was actually Filo. She's a filolial queen with an advanced transformation ability, and she can even take human form thanks to it. However, her clothes get ripped every time she transforms, meaning Naofumi has to get her some magic clothes if he doesn't want to go broke. The party leaves on a new adventure to gather the materials required.
Then I gained an in with 
the traders' grapevine,
ثمّ اكتسبتُ مصدراً سرّياً للتجّار
Außerdem stellte er mich
seinen Informanten vor.
El mercader me presentó a sus contactos
El mercader me presentó a sus contactos
Le marchand m’a aussi présenté
à son réseau.
Poi sono stato introdotto
nella rete di informazioni dei mercanti,
Depois fui apresentado à rede
de informações dos mercadores,
Мне открыли новостную сеть торговцев,