Xiao Yi connected the call immediately.

"Xiao Yi, did you see someone buying a lot of cornerstones in the trading hall?" Su Wan asked.

"Of course, because that person is me!" Xiao Yi replied with a smile.

"Ah! I thought someone knew the importance of the cornerstone!" Su Wan said. "Do you need the cornerstone badly recently?"

"I really need some. It's not particularly urgent. I just use the information difference to collect more. In two days, it's estimated that I can't receive it if I want to." Xiao Yi replied.

"Well, if I get all the cornerstones today," said Su Wan, "by the way, I got two cornerstones yesterday!"

With that, Su Wan directly initiated the transaction on the chat interface!

"[cornerstone] * 2 transaction none."

Xiao Yi was not polite and immediately agreed to the transaction.

"I'll give you a roast fish, replenish your energy and fish the material box!" Xiao Yi said.

"OK! I'll go and have a look at the flow of today's material boxes!" Su Wan said and hung up the call.

After the call, Xiao Yi looked at the trading hall again and found that 98 groups of transactions had been completed.

Among them, all 50 groups of mineral water have been traded, and only 48 groups of 240 groups of marine fish have been traded.

"It seems that water is more popular!" Xiao Yi muttered, and then used all the cornerstones after the transaction to expand his island.

Xiao Yi has been slowly expanding his island in the form of a square with the island monument as the center!

After this expansion, the island area came to 174 square meters, with a side length of 13 square, and five pieces were randomly placed in the south of the island.

"That should be enough!" Xiao Yi switched to the construction interface and prepared to place a single apartment.

"In view of the upgrade card you directly use, this placement can be quickly adjusted in terms of architecture!" the island monument prompted again.

Xiao Yi nodded, then placed the single apartment in the middle of the island, and the two flower beds were still placed on both sides of the house.

Flower pots made of two large wooden pots in front of the door.

The warehouse is on the east side in front of the door for easy access.

The henhouse was adjusted and placed on the outside of the West flower bed.

If it's still in the back of the house, it's right next to the bedroom of the bachelor apartment.

After getting up, he pushed open the bedroom window, and a refreshing smell of chicken excrement came to his face. Just thinking about it, Xiao Yi couldn't stand it.

Although there may not be too much chicken droppings under the influence of the rules of the world, what if!

To be on the safe side, Xiao Yi moved the chicken house.

There is also a fireplace. Xiao Yi placed it in the bedroom. Now there is no one else. He can only sit in the living room during the day. If it is cold, open the bedroom door and the heat can still cover the living room.

The fireplace covers an area of 40 square meters, and the single apartment is only 36 square meters.

"Well adjusted, now let's make sure!" Xiao Yi determined the adjusted layout on the simulation diagram of the island monument.

With Xiao Yi's determination, the layout of the island has changed greatly.

The wooden house disappeared, followed by a brand-new house. Xiao Yi is still in the house. The surrounding boards have become painted cement walls, which looks much stronger than the wooden house!

For the upgraded single apartment, the island monument is placed in the bedroom, so Xiao Yi and the wooden bed are in the bedroom.

Xiao Yi went out and found that the bathroom was next to the bedroom, but there was only one toilet in the bathroom at this time!

That is, the simple toilet built next to the wooden house has been transferred here.

"It's just an empty shell. There are still many things to buy!" Xiao Yi muttered.

After leaving the bathroom, there is a living room outside and a kitchen next to the living room. Of course, it is empty now.

Xiao Yi pulls in the rocking chair that was originally placed outside. There is finally furniture in the living room!

"It's too desolate!" Xiao Yi shook his head, went out, set the automatic fishing net to the fishing material box mode, and then looked at his flower pot and flower bed.

Lettuce looks ready to eat, but Xiao Yi didn't start. He hopes to make it bear seeds and then pick it, so as to achieve sustainable development!

Strawberries also grow luxuriant, and it seems that they are about to blossom and bear fruit!

The growth of others is very gratifying, but it is still far from mature!

I took some pure water and poured it on them.

"Pure water can't keep up!" Xiao Yi looked at the little pure water left and muttered, "if only we could get another water purifier!"

But the manufacturing drawing of water purifier is different from the cornerstone. Even if there is no information prompt, fools know that this thing is important, and no one will sell it.

"It seems that I have to drive by myself. It's really big!" Xiao Yi scratched his head.

"Didi, Jiang Yuntian requests a call!"

Xiao Yi immediately connected and said, "does brother Jiang have anything good?"

Because Jiang Yuntian is obviously older than Xiao Yi, Xiao Yi simply calls him brother Jiang.

Jiang Yun replied dryly, "yes!"

Then put a manufacturing drawing on the chat interface.

"[manufacturing drawing of water purifier] (Level C)."

"This is good. Make it quickly, so you don't have to worry about the problem of purified water!" Xiao Yi said in surprise. He believes Jiang Yuntian must know the value of the manufacturing drawing of the water purifier!

Jiang Yuntian replied, "it is because I know the value of this manufacturing drawing that I dare to take it out and exchange some A-level purified water with you, mainly for children!"

There is no milk powder here. If a child over one year old is allowed to eat with adults, he may get sick soon.

But if you don't eat, you can't eat bread all the time. You have to be able to produce bread all the time.

Jiang Yuntian found that since his child drank the A-level purified water provided by Xiao Yi, his whole state was different except that he was cured.

He also ate some fish with him these two days. He had a good appetite and had no adverse reactions, such as vomiting or eating very little before.

He knew that this must be the reason for the A-level purified water, so he was going to change some back, but he couldn't open his mouth on ordinary things, and the value was not worthy of the A-level purified water at all.

Until today, he has obtained this manufacturing drawing, and he knows that this can definitely be replaced with some A-level purified water.

Xiao Yi looked at him and said, "well, I understand. I want this picture. I will provide you with 50ml of grade a purified water and 100ml of grade C purified water every day. If you think you can, trade the picture to me!"

Class C water purifier can purify 20ml of purified water in an hour, 480ml a day, and give 100ml to Jiang Yuntian, which is absolutely not at a loss.

As for grade a purified water, Xiao Yi's admiration for Jiang Yuntian's father can bear 50ml a day.

"Yes, of course, thank you!" Jiang Yuntian said excitedly. He knew he was taking advantage again!

"Well, deal!" said Xiao Yi.

Xiao Yi first gave him 50ml of grade a purified water, while grade C purified water needs to be provided by a water purifier.

Just after the transaction with Jiang Yuntian, Su Wan sent a message: "look what I've offered!"

Seeing the materials sent by Su Wan, Xiao Yi's eyes are shining!