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...
Still, I thought you were the kind 
of scum that sat back and schemed.
Jedoch dachte ich, dass du zu dem Abschaum
gehörst, der sich zurücklehnt und was ausheckt.
Admito que pensé que serías el tipo 
de escoria que planea desde las sombras.
Admito que pensé que serías el tipo 
de escoria que planea desde las sombras.
Et moi qui croyais que tu n’étais 
qu’un fumier rusé…
Devo ammettere che ti facevo più una canaglia
 che se ne sta nell'ombra a complottare.
Ainda assim, achei que você era do tipo de 
verme que se escondia e agia nos bastidores.
И всё же, я-то думал,
 ты подлец с нелепыми планами.