First get the fishing rod from the observation deck and give it to the fisherman, then find the flower rope under the big tree, investigate the key at the bottom of the well after finding it, and then get the fishing rod back from the fisherman, and take out the key by combining the two. Go and open the rice bin next to Huang Zheng, take all the materials in it, and then return the key.
Find firecrackers on the candlestick beside the protagonist's bed, give them to the one by the bridge, and answer the question (Xia) to complete the task.