According to yesterday's method:\ First, run the SB Game Hacker or the Game Guardian. Start by going to the military tent and talking to his dad, then he will give you 1000 gold coins to buy soldiers from the instructor. Open SB Game Hacker (I use SB, but Gauss also works), search for 1000, then go to the instructor, buy a soldier, search for the current gold amount, ... until there is only one value left, that is the gold amount, then change it to 99999999. Now the important part is how to modify Happy Coins: click on this data to view the memory. In this memory, not far below, there is a dwbf data type showing 0:0:0:0, then change it to 99999999 and it will work.
【Personally tested, still effective after exiting and re-entering, screenshot:】\