After Aultcray reluctantly offers Naofumi a paltry reward, he heads to the slave merchant to redo the slave crest as per Raphtalia's wishes. He also buys a monster egg there, which hatches a few days later and gives him a new party member. Meanwhile, Myne shows up in Lute Village, where they're staying.
That letter probably said 
something Myne didn't like.
لعلّ تلك الرسالة قد ورد فيها ما لم يعجب ماين
In dem Brief stand sicher etwas geschrieben,
was Myne nicht gefallen hat.
Probabilmente in quel messaggio
c'era qualcosa che a Myne non è andato giù.
Deve ter algo desvantajoso pra
Myne escrito naquele pergaminho.