The Demon Lord's companion, Sylphy, reappears in the modern world after several thousand years. A masked man tells Sylphy where she can find the Demon Lord and she... 

Meanwhile, the Magic Academy is preparing for its school festival, and Ard is asked to perform in a play in lieu of their Sword King Battle Tournament while also dealing with a threat to cancel the festival. Ard and the others start discussing the play when they're interrupted by a huge commotion at the school.
I guess her training wasn't all for show.
يبدو أنّ تمرينها لم يكن بلا فائدة
Sie hat beim Training viel gelernt.
Su entrenamiento
no sirvió para mucho.
Su entrenamiento
no ha valido para mucho.
Son entraînement
a donc porté ses fruits.
Immagino che l'addestramento
abbia dato i suoi frutti.
Significa que o treinamento
dela rendeu frutos.
Значит, её тренировки
были не для виду...