The strongest engineering student in ancient times

Qi Yibai found a blacksmith to make arrowheads, and found that the arrowheads were quite expensive. One arrowhead cost a hundred cash, and thirty arrowheads cost three taels of silver. Let Qi Yibai pick it up the day after tomorrow.

After Qi Yibai paid a deposit of one tael of silver, he went to a shop selling animal skins to buy bow strings, but the bow strings were more expensive, the medium ones cost two taels of silver each, and the best ones cost four or five taels of silver. Woolen cloth.

Qi Yibai twitched the corners of his mouth, and bought three high-quality bowstrings. After all, processed deer tendons are not as durable as special bowstrings. He bargained for seven taels of silver, and when he walked out, there was only one tael of silver left in his arms.

There is not enough money to pay for the arrow next.

All he had to do was to prepare one and give it to Sun Dashi tomorrow, and ask him to give him the money. He would settle the money for the remaining two arrows, and then make the rest.

When Qi Yibai went back this time, he was walking again, and when the color was about to completely darken, he finally returned to the village.

He swore that next time, even if he was rejected all the way, he would not walk to the town again. He had to take a bullock cart, otherwise when he went to sell bows and crossbows in the future, he would break his legs if he walked a few more times.

Qi Yibai wiped off the sweat all over his head, and continued to walk home.

When he saw his thatched cottage, he found a Wei Qing whose figure he envied was standing at the door, and he was holding a copper pot in his hand.

When Wei Qing saw him, he didn't know if it was Qi Yibai's illusion, he seemed to breathe a sigh of relief.

As soon as Qi Yibai walked in, Wei Qing looked him up and down, and saw that nothing happened to him except that he was sweating a little more and his face was flushed because of the heat, so he took the copper box filled with oil-colored gum halfway. Give him the can, and give Qi Yibai a copper spoon, tell him to be careful, don't let the gum get on his hands.

When Qi Yibai took the copper pot, the system's voice saying that the task was completed sounded in his head, and he also rewarded him with five life points and three hundred system coins.

Qi Yibai was overjoyed and thanked:

"Thank you so much, come into the house and go back after dinner with me?"

But Wei Qing shook his head and left. He was an old bachelor, and he stayed alone in a room with two children. It was said that Brother Bai's reputation would be even worse.

Qi Yibai originally wanted to keep him, but thinking about it, he didn't buy any food today, only rice and pickles...

As long as he gave up, he kept thinking in his heart that after this transaction was completed, he must treat Wei Qing to a big meal.

After making some casual meals and eating, Qi Yibai took a cold shower, then went back to the room and lay down. Seeing that there were 480 system coins, he thought about earning more than ten taels of silver soon. Qi Yibai He happily asked the system:

"System system, what is the next task?"

The system didn't talk nonsense, and just dumped the task on the screen.

【Elementary Task [-]: Design and make a bicycle】

Qi Yibai almost sat up from the bed in shock. The primary task was to design a bicycle?Although he has ridden a bicycle, he is really not good at designing it!And where did the steel pipes come from? He can't forge it with bare hands...

But soon, a small reminder appeared under the task: iron heart wood and dead glue can be used.

Qi Yibai: "..."

So this is the role of the iron heart wood and stained gum?

but……

Qi Yibai protested:

"System, aren't you cheating? I don't know how to make the chains, gears and brake bars used on bicycles, and it is impossible to find materials!!"

System 16888 finally got the chance, and said solemnly:

"For four hundred system coins, you can get a super gift package, which includes a book on bicycle design principles, a chain and a pair of gears corresponding to the model, and a pair of brake chains as a bonus, and you can also get a warm reminder from the system!"

"What! It costs [-] system coins!! System, why don't you grab it? Then the task before me is not for nothing... Also, how much is the reward for this elementary task? Will it cost you even [-] system coins? No? Then I won't do it."

System 16888:

"A warm reminder, Mr. Qi's health is only nine points left." It means that if you don't do the task, you only have nine days to live.

Qi Yibai: "...Okay, I'll change."

What can I do if I don't change.

As the system currency changed from [-] to [-], Qi Yibai felt a pain in his heart, and immediately, the backpack box popped up, and there was a package with the words "big gift package" inside. , and they were placed in different grids, and there was actually a grid with a tael of silver on it.

Seeing this, Qi Yibai immediately had a flash of inspiration, and immediately asked:

"Mr. System, system coins can be exchanged for silver, can silver also be exchanged for system coins, then can I exchange one tael of silver for a thousand system coins!!"

Qi Yibai was excited in his heart. In this way, he could earn more silver in this ancient times, so what is he going to do with saving the system currency? As long as he sells his bow and crossbow, the silver will flow in rushing in.

However, in the next second, his fantasy was ruthlessly shattered.

A recycling bar popped up on the screen, saying that one tael of silver was sold for one hundred system coins.

Qi Yibai: "..."

Recycling at a ratio of ten to one is too deceitful!

Qi Yibai didn't want to say anything more to the system for a moment, and asked bluntly:

"System, where's your warm reminder?!" Mr. Lian didn't bother to call out.

System 16888:

"Isn't it already given before?"

Qi Yibai said angrily:

"That's okay, you are clearly threatening me that I have nine days to live, what a ghostly reminder!!"

He is rarely angry, but at this moment, he can't wait to kick the system to the sky.

System 16888 seemed to sense his anger, and rarely compromised:

"Reminder: In the forging function, you only need to spend a certain amount of system coins, put the materials and blueprints in, and the corresponding items can be automatically forged."

These words made Qi Yibai sit up from the bed in an instant.

That is, you don't have to do it yourself!

Qi Yibai quickly clicked on the small "Forging" icon, and sure enough, it was blue inside, with a large furnace in the middle, with buttons to start forging and a button to pause, and there were many buttons on the left, including materials, blueprints, recycling, and finished products. , smelting and so on.

Qi Yibai instantly understood what all these meant, and he was no longer as powerless as before.

So he only needs to design the bicycle, put it in the forging room, and he can get the bicycle! !

Qi Yibai was so excited that he wanted to study the design principles of the bicycle overnight, because he suddenly thought that if he really made the bicycle, what kind of bullock cart would he need to go to town in the future? Just riding a bicycle would be enough!

The road from Xibei Village to Xishui Town is full of mud, with very few stones, so you are not afraid of being too bumpy at all! !