Noir is the 3rd son of a poor noble and his job position is taken away by a more powerful noble. He also sadly lacks enough skills to attend the Hero Academy. He tries to find a way to be able to use his skill [Great Sage] better and stumbles across a hidden dungeon.
But I guess the real question is... 
what do I do now?
لكن أعتقد السّؤال الحقيقي هو... ماذا أفعل الآن؟
Aber nun ja … Was soll ich jetzt machen?
Ahora me pregunto,
¿qué es lo que voy a hacer?
¿Y qué es lo que voy a hacer ahora?
Sachant ça,
comment vais-je me débrouiller ?
Ma immagino che la vera domanda sia... 
Che faccio adesso?
Mas e agora? O que devo fazer?
Но теперь нужно понять... 
что мне делать?