User blog comment:Gemini Sunfall/Main Story and Sidequest Translation is Done, Now What?/@comment-46910941-20200917052323/@comment-36674939-20200917090132

v1.21.00 means you downloaded Part 1 from DLSite, not Part 2, meaning you won't even have access to a large amount of the game.

Our translation is not compatible with the Part 1 standalone, you'll need to purchase and download Part 2.