So I found out the method without PC. Play the Play Store version game, then save after reach arena.
Go to Android/Data, find the game file, change it name to anything else, and SAVE AT ANOTHER PLACE.
Delete the Play Store Version, then download the mod, then open the game mod for like a minute to let it create a new file in Android/Data
Close the mod game, clear data and cache of the game.
Go to the file game you save in another place earlier, change back to its original name, and move that file back to Android/Data
And that's it. Open the game and enjoy