I'm a translator and I want to translate this cute and funny ACT game, Usagi to Yume no Shima (RJ254376) by Milk Cocoa Shake into English. Unfortunatey I don't know how to edit the game data.

This isn't RPGMaker or a visual novel so Translator++ doesn't work. I tried opening /data/project.json but it's all garbled text - usually garbled text can be solved by changing the encoding of Sublime Text to UTF-8 or SHIFT_JIS but in this case none of the Japanese encodings I tried worked. I'm also not even sure if the text data lives in /data/project.json (but it is fairly big so that seems likely).

Here is the full game (RAW Japanese). If anyone knows how to modify text in games like these, that would be great.

https://drive.google.com/drive/folders/1A3ygSMagCQCmKGyRsQQ1BpPOwF3NQdPr?usp=sharing