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.
It's only as a formality.
Das ist nur eine Formalität.
Es cosa de protocolo.
Es cosa de protocolo.
Ce ne sera qu’en apparence.
È una pura formalità.
É apenas uma formalidade.
Это просто формальность.