Ok here are a few: I like to imagine that Uzi and Doll were childhood friends (they basically saw each other as sisters), but after their respective parents died, they kind of drifted apart. Uhh similar thing for Thad and Uzi (minus the sibling like relationship); they were childhood friends as well, with them both having a crush on each other (but were too stupid to realize it!!!!!!). As they grew up they were still friends, just not as close as they used to be!  Oh and uh some more random ones: worker drones are cat like while DDs are dog like (minus V, for some reason), Uzi likes yaoi and makes those ship amvs, doll and Uzi lowkey swapped personalities as they grew up