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.
and I absolutely won't 
leave someone to die
und werde niemanden sterben lassen,
wenn ich die Umstände kenne.
Une fois mis au courant,
je ne voulais pas vous laisser mourir.
e di certo non lascerò morire una persona
e em hipótese alguma eu
 deixaria alguém morrer
И когда узнал, не захотел вас оставлять погибать.