There are many small piles of grain and iron on the minimap of the Three Kingdoms Battle Banner, which can be picked up. And it is a stand-alone refresh, which means that only you can see, others can't see it, and they can't pick you up, and then when your hero has no physical strength, there are still a lot of pick-ups, at this stage, a small pile of resources 3000-5000 is considerable.
I also played on the first day, just sharing my experience here, communicating with each other, and hoping to correct what I said was wrong. Don't spray if you don't like it.