The safe move would be to go with the land of witches story and not the otome game one, making a translation of a translation comes with a lot of problems.
I know that feeling of being worse at something when people are watching.
Really though, Mahiro has the little devil gene! Such a talent for seduction.
Would blackmail work when the other side is willing to kill? It's possible this judge knows that if he doesn't do what he is told he will end up dead, how vulnerable would he be to blackmail then?
You betray your benefactor because you think it's all just nobles playing in their little world, not something of consequence. Turns out you helped a massive conspiracy get what it needs to kill another of its enemies