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...
When I explained the situation, 
they said they'd see us.
Ich habe die Situation erklärt
und sie würden uns treffen.
Al explicarles la situación, 
dijeron que fuéramos a verlos.
Al explicarles la situación, 
dijeron que fuéramos a verlos.
Je lui ai tout expliqué 
et il veut bien nous rencontrer.
Quando ho spiegato loro la situazione,
 hanno detto che vorrebbero incontrarci.
Quando eu expliquei a situação, 
eles concordaram em nos receber.
Узнав, в чём дело, они 
согласились встретиться с нами.