I assume that both Momdroid and Son were hired as extra security after this incident happened. Though plot-wise the x-over arc would likely fit better before this arc (before the 'reveal' of Milady's capabilities), instead of sticking to chronological order.
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Anyway, as we know, all Ojou-samas need a yandere imouto! Or yangire, that works too.
Updated
With that said—
What course of action would you prescribe henceforth?
Oh my, is that so.
Heard they were skilled, but in the end that all amounted to nothing.
They are sure to be more on their guard now.
We will back off for the time being.
That faux counterfeit of my dearly beloved sister—!
One of these days I will definitely smash that thing into pieces.We lost the signal...
It would appear that they have failed, my lady.