there's a little connection yet a difficult relationship between Amado and Delta. Amado was presumed to be the one for creating Delta. When he made his actual debut, Amado typed his pass code to activate Delta, who was very angry after her defeat by the Seventh Hokage and failed to retrieve Kawaki. Delta only told him off to do his own business instead of complaining.
This is only a little presumption of this mysterious relationship, so what do you guys think?