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.
Perhaps the tales of Demon Lord 
Varvatos's magnificent adventures?
ربما حكاية مغامرات ملك الشياطين
فارفاتوس ومغامراته المبهرة؟
Wie wäre es mit den tollen Abenteuern
des Dunklen Lord Varvatos?
¿Qué te parecen las magníficas aventuras
de Varvatos, el Señor Oscuro?
¿Qué te parecen las magníficas aventuras
de Varvatos, el Señor Oscuro?
Un récit sur les aventures palpitantes
du Roi démon Varvatos !
Forse le magnifiche avventure
del Signore dei Demoni Varvatos?
Talvez os contos das magníficas
aventuras do Lorde Demônio Varvatos?
Так и напрашивается эпос
о свершениях владыки Варватоса!