Hua Yu has broken down almost everything that can decompose his room, and now his experience value has reached 8.9 points, and he is still 1.1 points short of upgrading to level 2, and then he can use the mod he made.

After decomposing the items in the room, Huayu got a lot of basic building resources, and the following are Huayu's existing basic building resources:

1. Wood, 50 pcs.; 2. Iron, 10 pieces; 3. Cloth, 3 rolls; 4. Aluminum, 3 pieces; 5. Copper, 2 pieces; 6. Electronic components, 10 pcs.; 7. Silver, 1 piece; 8. Lead, 1 piece; 9. Rubber, 1 pc;

These are all the basic building resources that Huayu now has.

With these resources, Huayu wanted to build something, so he asked Number Zero: "Number Zero, how to build something?" ”

"If the host meditates on the construction in his heart, there will be a construction page in front of the host, and the host chooses the building body and builds it at will according to his own mind, and after the location of the building body is selected, the center silently determines the construction and completes the number."

After knowing how to build, Huayu silently thought about construction in his heart, and sure enough, as the number zero said, an orange transparent screen appeared in front of Huayu, showing the objects that Huayu can build now, there are only five things in total: the first is a square floor of 1 square meter, and the construction requires 2 woods and 1 piece of iron. Build a 0.5 XP and break down a 0.2 XP, the second is a 2㎡ square floor that requires 4 pieces of wood and 2 pieces of iron to build, and a 0.8 XP floor requires 0.4 XP, the third is a 3㎡ square floor that requires 6 pieces of wood and 3 pieces of iron to build a 1 XP and decompose a 0.6 XP, the fourth is a 1m long and 0.5m rectangular floor that requires 1 wood and 1 piece of iron to build, and a 0.5 XP and 0.2 XP to decompose a 5th floor that is 1.5m long and 0.5m wide, which requires 2 pieces of wood to build, 1 piece of iron, build a 0.7 XP, break up a 0.3 XP.

Huayu looked at the data carefully, and began to quickly calculate the most reasonable method in the current situation, and soon Huayu thought of the most efficient and economical method, directly building 2 square floors of 1 square meter with 4 pieces of wood and 2 pieces of iron, obtaining 1 point of experience points, and then decomposing the two square floors of 1 square meters to obtain 0.4 points of experience points, then a total of 1.4 points of experience points were obtained, and it was no problem to upgrade to level 2.

Thinking of this, Huayu immediately took action, and clicked on the icon of the 1㎡ square floor on the screen, and then a transparent 1㎡ square floor appeared in the air, Huayu wanted to try to see if this floor could really violate the rules of physics as the number zero said, so he built the 1㎡ square floor in mid-air, and finished silently reciting it in his heart, and then the 1㎡ square floor that was transparent suddenly became an entity, and it was suspended in mid-air.

Huayu swallowed his saliva, grabbed the side of the square floor of 1 square meter with his hand and dragged it down, but unfortunately no matter how much strength Huayu used, he couldn't pull the square floor of 1 square meter for a minute, and then the number zero spoke, "Host, only when the interface is built, the building body that has been built can be moved, and the number zero has answered." ”

"Oh, I see." Huayu understood the meaning of the number zero as soon as he heard it, and silently thought about building in his heart, and the building that had been built in front of Huayu became transparent in his eyes, Huayu tried it, and it could be moved, and then, Huayu built a second 1㎡ square floor, and then directly decomposed the two 1㎡ square floors, in addition to obtaining 1.4 experience points, there are also 2 woods and 1 piece of iron.

"Ding-Congratulations on the host level being upgraded to level 2, the host's construction system develops a level 2 building body, and the next level upgrade requires a total of 50 experience points."

After being upgraded to level 2, Huayu hurriedly opened the construction interface, the construction interface at this time changed, and two options appeared, one is the construction option that comes with the construction system, and the other is the MOD construction option, Huayu directly clicked on the MOD construction option, and the interface became the interface of the MOD manufacturing, and a box was displayed on it, this is the level 2 MOD made by Huayu, Huayu checked the construction requirements, 2 wooden blocks, 1 roll of cloth, 1 piece of silver, 1 piece of aluminum, 1 rubber, These are all materials that Huayu has now, so Huayu built it without hesitation.

A small square wooden box appeared in front of Huayu, Huayu hurriedly opened the wooden box, there was a white shirt and a transformation accessory inside, this transformation accessory is the shape of a small shirt made of crystal material, Huayu directly put the crystal on the shirt, but unfortunately waited for a long time and did not react at all.

"Number zero, what's going on? Why can't it be retrofitted? Huayu didn't know the reason, so he had to ask the number zero.

"Host, you need to build a transformation platform to be transformed, and the construction of a transformation platform needs to reach the host level 5 before it can be opened, and the number zero answer is complete."

Huayu suddenly froze, thinking that he could have a good chic, but he didn't expect it to be an empty joy, but this is not impossible to achieve, but he still needs to wait for a while, so Huayu re-energized, "My upgrade career has begun." ”

Just when Huayu kept building and decomposing in his room, the outside world also underwent major changes, the earth entered the eternal night era, all wireless communications on the earth failed, human society began to riot, some terrorists began to rumor that the end of the world was coming, human beings began to snatch food and water and women everywhere, because the transmission of information was blocked, government agencies could not play a role at all, and these officials hid in the underground shelter built by the government to avoid disasters at the first time. And the troops stationed in various places still hold their posts.

When those officials were hiding in underground shelters, another earth-shattering event happened on the earth, meteorites continued to fall from outer space to the earth, these meteorites did not hit the surface of the earth, but stopped on the surface of the earth, these are not meteorites but spaceships, but in the eyes of human beings these are meteorites.

The door of the meteorite spaceship opened, and there were all kinds of strange creatures inside, these creatures killed humans when they saw them, and some of them ate humans alive, and the human world fell into a panic, but there were also some human beings who stood up, these humans are not ordinary people, they are all people with superpowers, and their superpowers were also opened when the earth entered the eternal night era, and these people with superpowers easily defeated the aliens, which gave those ordinary people hope, and since then the generation of the group of heroes has also begun.