After Xiao Yi reprimanded the prosperity, he walked to the island monument, looked at the two medium-sized sailboats in the manufacturing space, and said, "Let me see your style!"

Choose next to the small wooden boat and place two medium sailboats side by side!

After placing it, Xiao Yi walked out of the wooden house and looked at the sailboat next to the small wooden boat in surprise.

"so big!"

According to Xiao Yi's estimate, the medium-sized sailboat is estimated to be ten times that of the small sailboat, and there may be more!

It was Xiao Yi's first time to board such a simple sailboat.

In the previous world, Xiao Yi had taken large ferries, but those were big ships made of steel, but the one in front of him was completely made of wood, and it felt completely different.

Xiao Yi tried to drive the medium-sized sailboat out, but he didn't expect to be able to drive out, and the operation was not difficult.

But he knew that this must be the revision of the power of the rules of this world. Everyone can drive a boat to the sea, but when an emergency happens, those who can really sail are still very advantageous!

After turning around and returning to the shore, Xiao Yi got off the boat and prepared his own breakfast.

At this time, Wangcai had already caught all the 10 fish caught yesterday.

"Oh, when can I eat vegetarian food!" Xiao Yi sighed after looking at the crops he had grown.

At present, we can only hope that lettuce will mature soon, because only lettuce has the shortest growth cycle.

But even if the lettuce is mature and there is no oil or salt, it is estimated that it will still be eaten raw with grilled fish.

"There are still a lot of things missing!" Xiao Yi sighed, and then turned over the grilled fish and said, "System, sign in."

"Sign in successfully, get a building upgrade card!"

"Building upgrade card: You can upgrade any building to the next level, with randomness!"

"Randomness?" Xiao Yi was a little puzzled.

"For example, you upgrade your own ship. The next level has various functional ships such as frigates and destroyers. If you use an upgrade card, you will be upgraded to any of them, and you can't think of control. This is randomness."

"This thing is good!" Xiao Yi's eyes lit up, and he looked at his building. Currently, what needs to be upgraded the most is his cramped wooden house!

The warehouse doesn't need to be that big, and there's not enough food to eat.

There is still a lot of space for the flower bed. Currently, the flower bed with S-grade soil has only two coconut saplings, and the other flower bed has only ten wheat seedlings and an apple tree!

There are already two A-level chicken coops, and they don't need to be upgraded at the moment.

The medium-sized sailboat is also enough for my own use in the early stage, and I can't use it myself. There is no map, no target, and there is no point in sailing out!

Of course, whether a ship is a building or not is another matter.

"It's a wooden house. After squeezing for so long, I can finally live in a bigger house!" Xiao Yi finally decided, "Use an upgrade card for the wooden house!"

"Please go to the island to operate!" The system prompts.

Xiao Yi was stunned for a moment, then muttered: "The system is still powerful, and it is compatible with the island tablet!"

So muttering, Xiao Yi came to the island monument, and then on the manufacturing page, he chose to upgrade his wooden house.

"Congratulations on upgrading your log house to a single apartment!" This is the system prompt.

"Warning: The current island area is not enough to release single apartments. Please expand your island area as soon as possible. If the island area fails to meet the release requirements within 24 hours, the upgrade will fail!"

"What!" Xiao Yi exclaimed with wide eyes, his island is now 63 square meters, and it's not enough to release the single apartment?

After taking a closer look at the upgraded single apartment, it has an area of ​​36 square meters, that is, the size of 6*6.

At present, Xiao Yi has two chicken coops, both of which are 2*2 in size, the warehouse is also 2*2 in size, the two flower beds are 1*4 in size, and the two large wooden pots are 1*2 in size.

After a rough estimate, the area was barely enough, but Xiao Yi set the fully automatic fishing net to circulate around the edge of the island, so that it took up the outermost circle.

In addition, the material boxes caught yesterday took up some space, which eventually led to insufficient area!

"As long as I completely stop working on the automatic fishing nets and get those material boxes, all the buildings can still be placed!" Xiao Yi muttered.

Of course, Xiao Yi just thought about it. Although he had a sign-in system, he still had to rely on fishing supplies and sea fish to survive.

"There's no way. It seems that I can't wait for the double bonus. After the island becomes larger, I can store up the material box!" Xiao Yi shook his head, went out to solve the grilled fish, and then started to open the door. The eight material boxes that were caught.

All on.

"Supplies obtained: cornerstone*4, plastic*4, stone*2, bread*200g."

"Get supplies: cornerstone*1, wood*4, metal sheet*3."

"Get supplies:..."

After the eight material boxes were opened, a total of 11 cornerstones were obtained, which were immediately used to expand the area of ​​the island.

There are also two bottles of mineral water and some other basic materials.

Xiao Yi pondered for a moment, and immediately hung the mineral water in the trading hall of the island monument.

"[Mineral water]*20ml transaction [cornerstone]*1."

All of a sudden, 50 groups were hung up, which is exactly the amount of two bottles of water!

"There are still the last two or three days, so let's collect some more cornerstones!" Xiao Yi muttered.

Today is the fifth day, and in two more days, the sea water will swallow a square meter of cornerstone. By that time, it is estimated that no one will sell the cornerstone!

And people who sell cornerstones must be able to regret even their intestines!

If there are more cornerstones in hand, maybe they can sell for a sky-high price!

However, Xiao Yi will definitely not sell cornerstones. If he wants to exchange, he has many other materials that can be exchanged. There is no need to use cornerstones. It is more reliable to expand his island!

Thinking of this, I cut the fish in the refrigerated warehouse and hung it on the trading floor!

"【Sea Fish】*50g Trading 【Keystone】*1."

I only left the sea fish that I just harvested today for myself, and all the rest were hung up, a total of 240 groups.

Because there was too much water and food hanging out, it suddenly caused a heated discussion.

"Those who have cornerstones in their hands quickly go to the trading floor, there are good things!"

"I see, there are people trading cornerstones for water and food!"

"There are still so many groups, this is a boss, when will I be able to have extra water and food like a boss!"

"This cornerstone doesn't seem to be of any use other than to expand the area. How much space do you need by yourself, it's more reliable to change food!"

"That's right, I want to change it too. I have two cornerstones in my hand!"

"However, I suggest that you keep a few cornerstones. I always feel that this thing is of great use!"

"You bad old man is very bad, I don't believe you, everyone quickly change, don't look at the number of groups, maybe it will be gone in the next moment!"

"Yes, I agree with the words upstairs, everyone hurry up and change!"

Xiao Yi looked at the discussion of those people, shook his head, and secretly said: "Change, change, you will cry in two days!"

"DiDi, Su Wan asked to speak to you!"