Shiroe and his friends have come to the Depths of Palm to reach the Sacrifice Clan's gold.  The underground labyrinth is filled with powerful monsters that wear them down in a war of attrition.  Meanwhile, Akihabara, Akatsuki hears about the "Teachings".  She's very interested to know that by completing a high level raid, she can greatly improve the level of her techniques.
Basic, Adept, Hidden, and Secret—
gibt es Einsteiger-, Experten-,
Meister- und Geheimkünste.
Básico, Experto, Oculto y Secreto, 
cada una más poderosa que la anterior.
à mesure que son rang augmente,
Base, Adepto, Nascosto e Segreto;
Básico, Adepto, Oculto e Secreto,
 uma mais poderosa que a outra.
базовый, продвинутый, 
посвящённый и мастерский.