Shijou Saikyou No Daimaou, Murabito A Ni Tensei Suru: Temporada 1, Episodio 6

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..

史上最強大魔王轉生為村民A 史上最强大魔王转生为村民A 史上最强的大魔王转生为村人A Shijō Saikyō no Daimaō Murabito A ni Tensei Suru Shijou Saikyou no Daimaou Murabito A ni Tensei Suru The Greatest Demon Lord Is Reborn as a Typical Nobody