Beelzebub-jou no Okinimesu mama. T1 E3 – Former Angel with Wings. / The Assistant, a Complete Sadist.
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.
Beelzebub-jou no Okinimesu mama.
Myurin siempre ha admirado a Beelzebub, gran demonio que gobierna sobre miles de millones de demonios. Para él, conseguir un puesto de trabajo en el que servir directamente a su admirado Beelzebub es como un sueño... al menos hasta que descubre que el gran demonio que admiraba es en realidad una chica que tiene poco de demoníaca y adora holgazanear y las cosas lindas. ¡Una historia repleta de humor sobre la vida de los demonios, villanos y no tan villanos del mundo demoníaco! As Miss Beelzebub Likes, ベルゼブブ嬢のお気に召すまま。