I'll count this as finished, because the cutoff was so to my taste. Let me believe they actually died for a few months.

What is the connection between Shin, the Morpho AI and Shin's brother? Was Fredrica daydreaming they'd be besties if they got to live together in the service, or were they actually related somehow? I admit I didn't follow a lot of what was implied about how her vanguard died when her regime was overturned, ect, so I wouldn't be surprised if I missed some important details.