I started on a rocking horse and relied on watching ads to dominate the highway survival charts.

Huo Yunzhi picked up the bag of screws.

Karma Value +1

Sure enough, the items with black labels were contaminated.

"Clatter"

The familiar sound of objects falling rang out again.

Next to the cashier, there was a wrench with a black label.

The black label vanished the moment Huo Yunzhi picked up the wrench.

This time, there was no notification of an increase in karma points.

"Does this mean purification can be done without consuming karma points? Is there really such a good thing in the world?"

Huo Yunzhi didn't believe that this road survival game would be so kind.

She started searching through the service area again.

Since tagged items don't consume karma points, it means she hasn't found the real source of the pollution yet.

An hour later, Huo Yunzhi received three more items with black labels.

The karma value also increases by 1 when you pick up five items.

"Who would have thought that karma values ​​could have decimal points?"

Huo Yunzhi was counting her spoils.

Just now, she accidentally touched the barcode scanner at the cashier and discovered that the purified black-labeled items did not require any survival coins.

This isn't a freebie.

Huo Yunzhi stared at the electric motor, repeatedly praying that it would become the next blacklisted item.

"I wasn't planning on driving today. My stamina is currently 88. Each item I purify costs 1 stamina. I need at least six hours of sleep so I can be in full condition to set off tomorrow. I can leave the service area at 12:30."

Huo Yunzhi looked at the clock, which had just reached eight o'clock, and stood up to stretch.

"I have plenty of time to do free shopping today."

For the next ten hours or so, whenever an item with a black label appeared, Huo Yunzhi would pick it up as quickly as possible.

Perhaps it's a matter of practice makes perfect; Huo Yunzhi's highest record was purifying 10 items in one hour.

Her karma value also reached 73.

"There's one last round left." Huo Yunzhi calculated the time, preparing to leave the service area after this batch of purification was completed at 12 o'clock: "It's just a pity that we still couldn't find the core area of ​​pollution in the end."

During those dozen or so hours, Huo Yunzhi also studied the circumstances surrounding the appearance of contaminated items.

Unfortunately, they appear out of thin air, just like spare parts are played out without any generation process.

"Never mind, I've already got a lot of materials. I should be content with what I have." Huo Yunzhi comforted herself. "Before I leave, I'll buy the electric generator so I can upgrade my vehicle to level two."

Time quickly came to twelve o'clock.

Just like the previous few hours, the pollutants appeared precisely on time and fell to the ground.

Another bag of screws.

Huo Yunzhi walked over and suddenly realized that the bag of screws had fallen in the exact same spot as the bag she had picked up earlier.

Even the arrangement of the screws inside remained unchanged.

"Does this type of pollutant only appear in the same places?"

Huo Yunzhi recalled the drop locations of the other items and was certain that each item had its own spawn point, or rather, a duplication area.

It's just that the repair shop has too many different parts.

It takes a very, very long time to complete this cycle.

If Huo Yunzhi hadn't stayed here all day, no one would have noticed.

Huo Yunzhi suddenly had a bold idea.

What would happen if she stood where the pollutants appeared beforehand?

Just do it.

Huo Yunzhi walked to the cashier where the next pollutant in her memory appeared.

Five minutes later, a wrench fell to the floor of the checkout counter.

!!!

These pollutants were indeed collected and categorized!

Huo Yunzhi's gaze swept over the shelves piled with repair equipment, which were complete and clearly categorized.

In a flash, she seemed to grasp something, and her previously confused mind cleared up.

From the moment she entered this service area, she overlooked the most important place.

storehouse!

"If these contaminated items came from the warehouse, that makes sense. The contaminated area in the Nuannuan Clothing Store was hidden behind the fitting room door, so if the warehouse of the unmanned convenience store is the source of contamination, it should also be hidden in some way."

Huo Yunzhi began knocking on the wall of the repair shop.

Each wall was tapped a few times, producing a dull "thump-thump" sound.

The walls were all solid, with no hidden compartments or secret rooms.

Huo Yunzhi pursed her lips: "The wall is fine, so it must be..."

She lowered her head, her toes lightly tracing the ground: "Underground? Then where's the entrance?"

Huo Yunzhi looked around, then dragged out a jack and slammed it to the ground.

A ripple spread across the ground, as if something had effortlessly neutralized the force of Huo Yunzhi's slam into the ground.

"No, that's not right." Huo Yunzhi immediately realized that she was looking in the wrong direction.

Just then, she suddenly felt a chill on the back of her neck.

It felt like I had just run 3000 meters and was then chilled to the bone by the cold river wind.

With a "plop," a drop of exceptionally cold and piercing water fell onto her neck.

"So the central air conditioning in the repair shop is leaking?"

Huo Yunzhi looked up at the location of the central air conditioning unit with dissatisfaction.

The air conditioner vents were silently blowing cold air, and the pipes connecting to it spread outwards like a spider web.

The pipe's route perfectly aligns with the aisle of the shelves below where items are placed.

"The thing fell from above!" The source of the pollutant was finally revealed.

No wonder there was a "thud" sound of something falling; it turns out the hidden warehouse wasn't underground at all, but above us, right behind that ceiling!

Huo Yunzhi no longer hesitated, moved the scaffolding over and began searching the ceiling.

Before long, they discovered what looked like a hidden door in the corner of the ceiling.

"This is it." Huo Yunzhi suddenly pulled, tearing open a small section of the ceiling.

Large amounts of grayish-white mist gushed out from the ceiling, just as a lot of polluted items with black labels were falling down below with a crackling sound.

[Warning! Pollution levels in the service area are rising! Warning! Pollution levels in the service area are rising! Fourth rule will be generated soon!]

Seeing that the fog was spreading throughout the repair shop, Huo Yunzhi decisively darted into the hole and closed the hidden door from the inside.

[Contamination detected in the service area, shall it be cleaned?]

Huo Yunzhi relaxed her mind, surrendered her body to the strange power of the ghost messenger, and then began to perform hand seals as before.

[Current karma value: 83...90...98...]

[Your current karma value is about to reach its limit. Purification is now complete. The fee for this purification is 2500 Survival Coins.]

As the purification spell ended, Huo Yunzhi found herself with a black shopping card.

The grayish-white fog gradually thinned out.

The warehouse, which was originally pitch black, gradually began to brighten up.

The black labels on the purified items have disappeared.

Huo Yunzhi excitedly squatted down and collected all the items at once.

"I've collected a whopping 81 items this time! Although I got fewer survival coins, I got more supplies, so it's a good deal!"