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.
The role of his partner, the Hero, Lydia...
...دور شريكته، البطلة ليديا
Die Partnerin und Heldin Lydia …
Quant à l’héroïne Lydia…
Il ruolo della sua partner, l'Eroina Lydia...
O papel de sua parceira,
a Grande Heroína, Lydia...
Далее, его напарница —
героиня Лидия.