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.
The first things the accessory 
seller taught me
أوّل شيء علّمني إيّاه بائع الإكسسوارات كان
Als Erstes lernte
ich vom Schmuckhändler,
Lo primero que me enseñó el mercader
Lo primero que me enseñó el mercader
Les choses apprises
par le joaillier sont :
La prima cosa che ho imparato 
dal mercante di bigiotteria
A primeira coisa que aprendi
do vendedor de acessórios
Первое, чему меня научил ювелир, —