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.
I'm amazed you learned where to 
find that gemstone so quickly.
أنا مندهشة من أنّك تعلّمتَ كيفيّة
إيجاد ذلك الحجر الكريم بسرعة
Kaum zu glauben, dass Sie so schnell in Erfahrung
bringen konnten, wo man den Stein findet.
Localizaste la piedra
antes de lo que esperaba.
Has localizado la piedra
antes de lo que esperaba.
Je ne pensais pas que tu mettrais
le grappin dessus si vite !
È incredibile che tu sia riuscito
a trovare così in fretta quella gemma.
Estou maravilhada que você
conseguiu achar essa gema tão rápido.
Вот уж не ожидала,
что удастся так быстро его разыскать.