Hello, I'm looking for help in unpacking Unity cache files

[idoladeus]

First of all, sorry for my bad english-I'm not English speaker.

I'm trying to unpack an online Android game called "Touhou Danmaku Kagura (東方ダンマクカグラ)".
Unpacking the main .apk file was easy-I used apktool and AssetStudioGUI to inspect which resources that included in .apk file, and I could find some assets.
Then, I recognised that this game receives additional data from online server, so I inspected Android/data folder to seek additional cache files. I could find a folder called com.dena.a12026801 and it was the folder I looked for.
I used my AssetStudioGUI tool to inspect which assets do they have-since other Android games worked with this method-but I could not find any asset/data info.

The following drive link is what I found in Android/Data folder-which includes two folders, Cache and Files.

https://drive.google.com/file/d/1X644SS ... p=drivesdk

Cache looks like the compressed resources that game uses, and I don't know about what does this Files folder.
I would like to know how can I unpack these cache files-I want to extract Live2D data, Images, Sound data, and etc.

Thanks for spending your time to this topic.