I have been sleeping for 500 years and I opened a supermarket in the end times

"Are you done yet?"

Ji Yan returned to the building and asked with a raised eyebrow.

After receiving a positive answer, everyone went downstairs.

When they reached the third floor, they stopped.

Everyone, including the children, took a bucket of salt water.

Starting from the second floor, the entire building below and outside were filled with swarms of insects.

Ji Yan took the lead.

She poured salt water on the swarm of insects.

The insects that came into contact with the salt water began to roll over. The skin on the surface wrinkled and began to swell. The skin was stretched to become somewhat transparent, and the liquid sloshing inside could be clearly seen.

After a while, green liquid mixed with suspicious fragments slowly overflowed from the mouth and tail. The insect's body gradually shriveled up and finally turned into a green skin as thin as a piece of paper.

Really works.

With everyone's concerted efforts, they poured salt water on the insect swarm that trapped them.

"Okay, now everything is settled. I'm leaving first! See you again if we're lucky." Ji Yan got on her nuclear-powered bicycle and waved goodbye to everyone.

"Are you really not going to consider going to Canghai Base?" Jin Yi was unwilling to give up and tried to persuade her to stay.

Yao Xue and the others looked at Ji Yan with expectant eyes.

But Ji Yan didn't buy it.

"No need." Ji Yan said calmly, "I like to act alone."

"Okay, see you again."

Jin Yi knew that he couldn't force it, otherwise, not only would his goal not be achieved, but the relationship between the two parties would become even more strained.

Others waved goodbye to her as well.

Ji Yan started the nuclear-powered bicycle, turned the front of the bicycle, and drove away into the distance.

Yao Xue stared at her departing figure until she disappeared.

She then said to Jin Yi: "Are you interested in making a deal?"

Last night, after her conversation with Ji Yan, Ji Yan handed over some of the inventory:

两把铁剑、两把激光剑、一卷止血绷带、一个打火机、3包白纸(3kg)、20桶水（100kg）、5盒鸡蛋(5kg)、70袋面条(350kg)、51kg油、51kg酱油、51kg白醋、51kg冰糖。

Give it to Yao Xue and let her sell it, and then return the principal to Ji Yan.

Ji Yan calculated the principal based on the selling price.

An iron sword (purchase price 30\sale price 40)

A laser sword (purchase price 100\sale price 200)

1kg paper (purchase price 5\sale price 8)

A lighter (purchase price 5\sale price 8)

A roll of hemostatic bandage (purchase price 30\sale price 40)

5kg pure water (purchase price 3\sale price 5)

1kg eggs (purchase price 3\sale price 5)

5kg noodles (purchase price 1\sale price 3)

Seasoning gift pack [1kg each of salt, oil, sauce, vinegar and sugar] (purchase price 20\sale price 40)

Among them is a laser sword, which is a gift from Ji Yan to her only current partner and is not included.

So the principal that Yao Xue has to repay at that time is:

40x2+1x200+1x40+1x8+3x8+20x5+5x5+70x3+51x40=2727

The conversion of zombie crystal core is:

1 level 0 zombie crystal core = 1 gold

1 level 1 zombie crystal core = 100 gold

1 level 2 zombie crystal core = 1000 gold

And so on

……

Ji Yan found an open space, stopped, put away the nuclear-powered bicycle, and walked.

Anyway, the system didn't urge her to go back to the supermarket.

She simply went along the way to find some zombies and take out some crystal cores.

Alas, she doesn't want to work so hard.

But now she only has 4 yuan balance, and if she doesn't try hard, she won't even have money to buy noodles.

The roads were empty and it was hard to see any zombies.

The ground was uneven, and there were several small mutant bloodworms in the depressions.

Maybe it’s because they have no food to eat, so they are very small in size and in a very listless state, as if they are about to die.

As for why there are only a few?

Ji Yan guessed that the place where they landed was where zombies were densely populated. The zombies fed on them, and after eating a certain number of them, they would form cocoons, sleep, and evolve.

So most of the mutated bloodworms were eaten.

When they smelled the flesh and blood of living people, they changed their half-dead state and began to squirm, struggling to crawl towards Ji Yan.

Ji Yan looked at it coldly, turned on the protective shield, walked over and stepped on it.

The soles of her feet felt like she was stepping on jelly. She could press it down as much as she wanted, and it would spread out to both sides like a sponge, forming a pancake shape.

When Ji Yan retracted her foot, it returned to its original form and greedily wanted to bite Ji Yan, but was blocked by the protective shield.

Ji Yan was too lazy to care about these bugs. Killing them would be a waste of time and would pollute her eyes. She didn't have any crystal cores, so she simply left them there and waited for them to starve to death.

She casually walked into a house on the side of the road.

The house is very tall and big, with more than 20 floors.

The first floor was very empty, with only some old furniture and materials piled randomly on the ground.

She continued walking up.

The second and third floors look similar.

Until she walked into the fourth floor.

The room full of densely packed blue-black cocoons came into her eyes.

Ji Yan did not immediately take out the laser sword to cut the cocoon.

Instead, start observing the characteristics of these cocoons.

Some of these cocoons are dark in color, and some are light in color.

The dark cocoon makes it difficult to see what is inside.

Light-colored cocoons are the opposite.

Through the light blue-black shell, Ji Yan could clearly see the sleeping zombie inside.

Just like a person sleeping in bed, the zombie lay quietly in the cocoon.

A liquid filled the cocoon, wrapping the zombie like amniotic fluid wraps around a baby.

Its current appearance is very complete, and is very close to the completeness of the second-level zombie that Ji Yan fought against.

Do you have to wait until the color of the cocoon turns transparent before you break out of the shell?

Ji Yan really wanted to stay here and observe until the zombies broke out of their shells.

Unfortunately, reason told her that she couldn't.

There are about twenty to thirty cocoons here, nine of which have turned into light colors.

If she keeps waiting.

It is very likely that what you are waiting for are nine level 2 zombies.

And there are probably clusters of cocoons on the upper floors as well.

Ji Yan estimated her current strength and realized that she could at most deal with five level 2 zombies at the same time. If there was one more, she would have to run away.

Not to mention if there were more, she would not even have a chance to run away.

Thinking of this, Ji Yan took out the laser sword and performed caesarean sections on these cocoons one by one.

Help them to be "born" early.

Water flowed out of the smelly cocoon, and the zombie inside closed its eyes without making a single movement.

Ji Yan cut open their heads and took out green crystal cores the size of longan.

Are they all wood?

Ji Yan seemed to be thinking about something.

She cleared out all the cocoons on this floor and obtained a total of 26 second-level wood crystal cores.

She continued walking up.

Sure enough, there were also cocoons on the fifth floor.

But what was taken out was a light blue crystal core as big as a longan.

Searching layer by layer.

There are zombie cocoons only on the fourth, fifth, sixth, seventh, eighth, ninth, tenth and eleventh floors.

Take out the longan-sized zombie crystal cores in cyan, light blue, red, brown, bright yellow, green, purple and dark blue colors respectively.

There are 26 cyan beads, 24 light blue beads, 31 red beads, 28 brown beads, 21 bright yellow beads, 12 green beads, 10 purple beads, and 9 dark blue beads.

Ji Yan left the building first.