As daughter of the former demon lord, Mio's foster parents were slain by powerful demons after her life. Still seeking to slay her, Basara reveals himself as a member of the hero clan--an enemy of the demons--and vows to protect Mio as a member of his family.
I don't want others finding 
out we live together, either.
Ich will nicht, dass andere spitzkriegen,
dass wir zusammen wohnen.
Je n’aimerais pas
qu’on découvre notre cohabitation.
Nemmeno io voglio che
 scoprano che viviamo insieme.
Eu não quero que descubram 
que moramos juntos também.
Самому не хочется, 
чтобы про сожительство узнали.