It's cute! It's silly! It's an obscure PC Engine visual novel that could only really exist in the 90s and it's pretty dang precious - it's Galaxy Fraulein Yuna by Red Entertainment and Hudson Soft, with translation by Stargood!
This review launched at the same time at the Patreon campaign, but I'm crossposting it here as a free post so my page isn't totally barren. Yay marketing!
Translation: https://www.romhacking.net/translations/6247/
Resource credits:
Various gameplay by NintendoComplete: https://www.youtube.com/c/NintendoComplete
EX Interview w/ Akitaka: https://web.archive.org/web/20000623012522/http://www.ex.org/3.4/08-feature_akitaka1.html
Early MS Girls scanned by Kita082: https://www.flickr.com/photos/77780465@N03/6984973951/in/album-72157629591302377/
https://archive.ph/HdLku
MS Girls figure video from Mecha Gaikatsu: https://www.youtube.com/channel/UCowMgqWFV83mFHLKo32_O4w
TG16 VHS uploaded by Genkisan: https://youtu.be/cVJtxJcFfHI
Hudson Soft video uploaded by Chris Covell: https://youtu.be/YDgEMeubib4
PC Engine Fan scans by Gaming Alexandria: https://twitter.com/GamingAlexandri