This game can be modified using GG (game guardian) some Chinese peps also learned the trick on how to modify in-game currency and item drops.... Since I don't have any experience using game guardian im having a hard time understanding it lmao.
Also this image is a modded APK... The author doesn't want to share it unfortunately....
Also this zip file is the instructions on how to modified it using game guardian. (It's on Chinese language) you can translate it by yourself.