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.
Things got crazy while 
giving her that crest.
اتّخذت الأمور منحى فوضويّاً أثناء منحها
تلك الشّارة
Das Monstersiegel zu aktivieren,
war ziemlich anstrengend, oder?
Fue difícil marcarla
con el emblema de monstruo.
Fue difícil marcarla
con el emblema de monstruo.
Ça a été compliqué
d’apposer le sceau.
Durante l'applicazione del sigillo
ne sono successe di tutti i colori...
Foi complicado quando
estávamos colocando a maldição.
Да и клеймо пока делали, намучились…