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.
You have to participate in a raid.
Die Teilnahme an Raids
ist also unerlässlich.
Debes participar en un raid.
et il est essentiel
de prendre part à un raid.
Bisogna partecipare a un raid.
Precisa ser uma incursão.
Без участия в рейдах тут не обойтись.