Seiichi and Saria train under Artoria to become adventurers. During their training the three of them are teleported into a dungeon by a demon’s trap.

The dungeon they find themselves in the stronghold of the Black Dragon God, the strongest member of the Demon Lord’s Army. Artoria gets separated from Seiichi and Saria in the dungeon and the giant Black Dragon God appears before her. Then that overwhelming threat attacks! Can Seiichi and Saria save her in time?!
Why did the three of you disobey 
orders to go to the human realm?
لمَ عصيتم أوامري وذهبتم لعالم البشر؟
Pourquoi avez-vous enfreint les règles
pour aller dans le monde des humains ?
perché voi tre avete disobbedito agli ordini
per andare nel regno degli umani?
Qual é a razão para desobedecerem a
proibição de ir ao mundo dos humanos?
Почему вы меня не послушали 
и отправились в измерение людей?