Where did the wild boar of the old lady sweeping gold come from in "The Eleventh Floor Lost"?

The disappearing eleventh floor overall score 2023 /

The wild boar of the gold-sweeping granny was given by the wildlings. Qu Jianghe found out about the old lady sweeping gold because a villager in Mayu Village was selling wild boar at the market. Selling wild boar privately is a crime, so the villager was arrested and sent to the police station. At first, the villager insisted that he killed the wild boar by accident before selling it. However, the wild boar had bullet holes, and the villagers told the truth when they realized that the matter had become serious.

This wild boar was sold to him by an old lady in Mayu Village. This old lady used to be a gold sweeper in the mine, so everyone called her the gold sweeper. Qu Jianghe investigated the old lady sweeping gold based on clues, but the old lady hated the police very much, especially those from the Jindao Township Police Station, so Qu Jianghe was kicked out. Qu Jianghe couldn't get clues from the old lady, so he had to go to the villager again, and learned from him that the old lady's wild boar was given to her by a wild man, saying that it was for gratitude. The savage on the savage mountain is Luo Jiang, and Luo Jiang is a wanted criminal. I don't know what he has to do with the old lady sweeping gold. He sends some wild rabbits to the old lady from time to time.