Who is Su Musheng, grandpa of Suning?

Su Musheng, grandpa of Suning, killed pigs. Grandpa in the novel is a pig killer, also known as folk taboo gossip, with Suning and Linxi as the main representatives. This novel is full of supernatural colors. In the novel, Risunen's grandfather Su Musheng was a pig killer, and finally he was hanged under the old locust tree at the entrance of the village because of a clever pig.