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.
First Contract Between Servant and Master
Erster Vertrag zwischen Diener und Meister
Le premier pacte d’allégeance
Primo contratto tra servo e padrone
Primeiro contrato entre Servo e Mestre
Первый контракт между слугой и господином