One of the benefits of living by the mountain is that there's never a lack of wild game, all sorts of flowers, and wild vegetables.
Even if Lu Yun didn't personally go hunting or gathering in the mountains, wasn't there Deputy Director Pei?
Whenever Shitou secretly took the Dragon Squad out for training, he always remembered to bring her a big load of various wild vegetables and wildflowers.
In everyone's eyes, Deputy Director Pei, a.k.a. Shitou, definitely qualified as an exemplary husband, a real-life embodiment of "tough guy with a tender heart." Hence, in the family compound, there was no shortage of people who secretly envied, jealously coveted, and hated Lu Yun.
Apart from wildflowers and grass—oh, no, it's more accurate to say "wild vegetables"—there were several occasions when he even specially brought back live pheasants, hares, sparrows, and even butterflies and bees to please Lu Yun.