Itsuki finds out that in addition to Stardust Labyrinths where the "Impurity Lords" dwell, there is also the 13th labyrinth, as well as the existence of the 13th maiden. He sets out to find the maiden. However, there is the possibility that the 13th is a male. Although not quite convinced, he seeks all the male candidates he could think of...
Because Impurities shouldn't exist.
.لأنّ الشّوائب لا يجب أن تتواجد
Befleckungen haben
eben kein Existenzrecht.
Porque las impurezas
no deberían existir.
Porque las impurezas
no deberían existir.
Les Impuretés sont détestées,
après tout.
Perché le Impurità non dovrebbero esistere.
Porque Impurezas não devem existir.
Потому что Нечистых не должно быть.