After ending the battle against Zolgia, Basara regains his peaceful life with his two little sisters, Mio, the daughter of the previous demon lord, and Maria, her little sister who's also a succubus. As Basara pursues the preparations for the sports festival at school, one day he's attacked by a person being manipulated by magic. Recalling the strange gaze he felt at school, a suspicion of his begins to grow...
So then Maria suggested this would be best.
Maria hat das dann
als beste Möglichkeit vorgeschlagen.
Fue entonces cuando Maria 
nos sugirió esta idea.
Fue entonces cuando Maria 
nos sugirió esta idea.
Et enfin, 
Maria nous a proposé cette idée.
E Maria ha detto che
 questo era il modo migliore.
E daí a Maria disse que 
essa seria a melhor opção.
А Мария сказала, 
что лучше способа не придумаешь.