At least Kurumi was forced to admit she hacked into DA and broke Radiata to Takina.

Oddly enough, they also casually tossed in that there are boy orphan assassins, and Chisato has been attacked by them.

Lycoris/DA being older than the Meiji restoration was a bit of a surprise though. I had been under the assumption that it was much more a recent thing, in response to a ramp up in violence.

The casual worldbuilding this series does is so well interwoven into its dialogue.