Whether this sentence in Wei and Jin dynasties did not explain the fisherman's answer was about how the fisherman rewarded him.

I wonder if there were any Han Chinese in Wei and Jin Dynasties. This shows that the fisherman has answered them, because people in the Peach Blossom Garden have fled to the Peach Blossom Garden since Qin Dynasty, and the fisherman told them about the Han, Wei and Jin Dynasties.

People in Taoyuan were surprised to see the fisherman and asked him where he came from. The fisherman gave him a detailed answer. He invited the fisherman to his home and cooked a meal (for him). When people in the village heard that there was such a person, they all came to inquire about the news. They said that their ancestors came to this isolated place with their wives, children and fellow villagers to avoid the disaster of the Qin Dynasty, and they never came from the world again. So I broke up with people outside the Peach Blossom Garden. They asked what dynasty it was, but they didn't know there had been the Han Dynasty, let alone the Wei and Jin Dynasties. The fishermen told them what they knew in detail, and those people sighed after listening.