Just as peace is beginning to reign in Azusa's home, a young elf named Halkara shows up pleading for her help. Halkara says that an energy drink she made angered a terrifying high demon, Beelzebub, who is now out to kill her. Azusa would prefer to avoid anything that might ruin her slow life, but she can't just leave the poor girl to die, so she reluctantly agrees to shelter her...
Are you sure about this? A mere human 
is bound to regret defying me!
هل أنت واثقة من هذا؟ كلّ ما ستجنيه 
!محض بشريّة مثلك هو النّدم على تحدّيي
Bist du dir auch ganz sicher?
Te arrepentirás de desafiarme, humana.
Te arrepentirás
de haberme desafiado, humana.
Je te préviens,
Ne sei proprio sicura? Un semplice essere umano 
è destinato a pentirsi di avermi sfidato!
Tem certeza disso? Sua humana ordinária,
você se arrependerá de me desafiar.
Уверена? Обычный человек так или иначе
 пожалеет о противлении мне!