Ok, here's everything I've translated (using MTL basically)...
The girls' names, classes etc are baked into some sort of variables/arrays and have no
Key
values mapped to Unreal's localization (.locres) system, so I can't translate them without parsing/restoring binary assets. And since the game was not that interesting to me, I decided to stop at a barely edited machine translation of what I could extract by now.
To install the translation, unpack the archive into the game root directory (where
DecliningBirth.exe
is).