Back on Empty Island, the captain will set up a mailbox at the dock from which you can receive letters in the future. After reaching the top of the mountain and talking to the big white wooden stick, you can unlock the small badge exchange function. Press the ▲ key on the big white wooden stick to exchange it.

After that, go to the green pioneer area and there will be a green sign nearby. After the investigation, three tasks will appear on the green billboard, requiring the creation of rivers, grasslands, and forests; talk to Lulu and learn that she has investigated a location suitable for digging a river. Follow Lulu to her destination and talk to Lulu when you arrive. Talk to Chaco and use the Pot of Dryness to fill the marked spot with water to form a river. And don’t use muddy water, but clean water. After filling, talk to Lulu. After the conversation, follow her and fill the place where she is. Talk to Lulu and let them dig the canal. Talk to the big earthworm to get the prairie dumpling, and develop the prairie with it. Place the prairie dumplings where the mark indicates, and the giant earthworms will turn that place into a prairie. After completing the grassland development, you will get a small badge; talk to the big earthworm and start the forest development. Obtain 3 forest dumplings, choose a piece of soil or dry land to place the forest dumplings. After placing 2, you will get a small badge; after the canal is dug, Xiduo will come to call you, talk to Lulu, and then find a place with water. It turned into muddy water. Use the Drying Pot to remove the muddy water, and then destroy the contaminated mud underground. The dry lake was then replaced with clear water and filled with water again. After filling the water, talk to Lulu. She decides to destroy the soil and sand in front of her, so let her do it first; talk to Pompeii, and the big white wooden hammer appears and tells the news about the material island. Go to the port and talk to the captain. The goal is to bring back a chicken. You can see what materials you can get on the material island. If you want to catch chickens, you can go to "ジメジメ_", but you need to consume the builder's heart to open a route.

After catching the chicken, go back and talk to Pompeii to complete;