Beelzebub and Mullin run across someone Beelzebub seems to know. His name is Astaroth, and he's surrounded by adoring girls. He calls himself Beelzebub's older brother, and starts going off on how much he loves Beelzebub. However, Astaroth starts to wonder about Mullin, and goes to visit the two while they were working, leaving behind is own work. But then Astaroth's assistant, Sargatanas, comes to get him, and he seems pretty afraid of her.
Well, more like a "big brother" 
type of relationship.
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علاقات الأخوّة
Nein, wir führen nur so
eine ähnliche Beziehung.
Bueno, es más bien ese tipo de relación.
Bueno, es más bien ese tipo de relación.
Un genre de grand frère, disons.
In realtà faccio più la parte del fratello maggiore, ecco.
Bem, é mais como um tipo de relacionamento
em que sou o "onii-chan", entende?
Ну, скорее у нас просто
такие отношения.