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.
Doesn't this make us more 
evil than the criminals?
ألا يجعلنا هذا أكثر شروراً من المجرمين؟
Macht uns das nicht noch
schlimmer als die Verbrecher?
On n’est pas encore
plus criminels qu’eux ?
Non ci rende anche peggiori dei criminali?
Isso não nos torna ainda mais criminosos?
Не большие ли мы злодеи, чем они?