Dusk, twilight falls.
Deep within Tianshui Zhao Lu Canyon, the clang of tools echoes endlessly, and steam rises toward the heavens.
A large fish, donning a steel helmet, fiercely flings its tail, propelling itself forward with force. Its helmet's sharp spike pierces into the rock. Exhausted, half-stuck within the stone, the fish struggles unsuccessfully until a few determined flicks finally crack the rock open. Following it are other large fish, but their helmets are no longer spiked; instead, they wield flat iron shovels. Working in seamless relay, they strike with orderly precision.
Occasionally, a fragment of white jade is unearthed, eliciting cheers from the crowd of fish.
If a mineral is discovered, it's even more sensational. After the large fish cross-verifies its value, if deemed precious, immediate rewards follow. Housing and meal standards can even be elevated as a result!