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?!
As long as you hold on to it, it'll lead 
you to a party member's location.
ستقودك لموقع أعضاء المجموعة طالما تحملها
Wenn man den hat, führt er
einen zu seinen Kameraden.
Si la usas, te guiará
adonde están los otros miembros.
Si la usas, te guiará
adonde están los otros miembros.
Cette pierre te mènera
à tes compagnons.
Finché l'avrai con te, ti guiderà dal tuo gruppo.
Se estiver com isso, ela vai
te guiar até outros do grupo.
Пока он с тобой, ты всегда будешь 
знать местонахождение команды.