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'll beat you black and blue!
!سأسحقك
Ich schlag dich Knilch zu Brei!
¡Te destrozaré en un instante!
¡Te voy a dejar para el arrastre!
Je vais te démolir !
Te le darò fino a cambiarti i connotati!
Eu vou te transformar
em saco de pancadas!
Сейчас ты у меня получишь!