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 ribbon looks oh-so-cute 
even in her monster form!
تبدو الشّريطة ظريفة جداً حتّى بشكلها الوحشي
Auch in der Monstergestalt
ist die Schleife niedlich!
¡El lazo en su forma
de monstruo le queda adorable!
¡El lazo en su forma de monstruo
le queda adorable!
Son ruban est mimi,
même sous cette forme,
Con quel fiocco è carinissima anche in forma di mostro!
O laço ficou super fofo na
forma de monstro também!
Даже в обличье монстра
ленточка мила!