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...
but guys like that would never want girls 
to know they're actually inexperienced
لكن مثل أولئك الأشخاص لا يريدون أن تعرف الفتيات أنّه بِكر
aber Männer wie er wollen nicht,
dass die Mädchen seine Unerfahrenheit kennen
pero los tipos así no querrían
que sepan que no tienen experiencia
pero los tíos así no quieren
dejar ver su inexperiencia
mais comme il veut faire croire
qu’il est expérimenté,
ma quelli come lui non vogliono far sapere in giro
che in realtà hanno zero esperienza
mas caras como ele não querem que
saibam que ele não tem experiência
но такие парни не хотят, 
чтобы дамы узнали об их неопытности,