As Miss Beelzebub Likes It. (2018)

S1E3 Former Angel with Wings. / The Assistant, a Complete Sadist.

Title: The Fallen Angel's Legacy / The Assistant's Ruthlessness Plot: Beelzebub and Mullin encounter a familiar figure named Astaroth, who is surrounded by a throng of admirers. Claiming to be Beelzebub's elder brother, Astaroth expresses his affection for him enthusiastically. Curiosity piqued, he shifts his attention to Mullin and decides to drop by while they’re busy with their tasks, neglecting his own responsibilities. However, Astaroth’s assistant, Sargatanas, soon arrives to fetch him, revealing a palpable fear of her presence.