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.
My father and I have both 
decided to protect you.
Mein Vater und ich haben entschieden,
euch zu beschützen.
Mi padre y yo decidimos protegerte.
Mi padre y yo decidimos protegerte.
Mon père et moi
avons décidé de te protéger.
Mio padre e io abbiamo deciso di proteggervi.
Eu e meu pai decidimos 
que iremos proteger vocês.
Мы с отцом решили тебя защищать.