Stimulated by this situation, everyone's minds were in turmoil, but they could only force themselves to stay calm and hurry to complete the calculations in their files.

Not finishing meant death.

Getting it wrong also meant death.

As it was approaching twelve o'clock, no one dared to breathe heavily, their hands and feet trembling as they checked their results without pause.

They probably hadn't been this serious even during their math exams.

Even Gu Wanyin started to panic.

After all, who could handle an instant explosion if something went wrong?

The Little Squirrel System stood on her shoulder, eyes fixed intently on the screen, helping her check.

Then it placed its paw on Gu Wanyin's forehead and said, "Don't worry, host! I've checked everything for you, there are no mistakes!"

"Go help check Bai Shuwen and the others," Gu Wanyin quickly said. "If there are any errors, tell me, and I'll relay it to them."

The Little Squirrel System immediately jumped onto the shoulders of the others.

Everyone knew this little squirrel always followed Gu Wanyin, and although they didn't know exactly what it was doing, none of them shooed it away.

If there had been enough time, Gu Wanyin and the system wouldn't have minded helping other players check their work.

But time was running out.

So Gu Wanyin could only prioritize her friends.

Soon, the Little Squirrel System jumped back.

"Host, only Dong Yue has an error in line twenty-two of her data! Tell her quickly!"

Gu Wanyin checked the time - less than two minutes left!

She immediately stood up and ran to Dong Yue's side.

"What's wrong?" Dong Yue was startled by her sudden approach.

Gu Wanyin had no time to explain. She quickly glanced at line twenty-two in Dong Yue's file, rapidly calculated, deleted the wrong answer, and input the correct one.

Just as she finished entering it, a few seconds passed, and it was twelve o'clock.

Dong Yue realized her original answer had been wrong and her face turned pale with fear.

"B-b-b-boss Gu, th-th-thank goodness for y-y-you, otherwise I-I-I would've..."

Dong Yue stammered, barely able to speak coherently. Searᴄh the nôvelFire.net website on Google to access chapters of novels early and in the highest quality.

Gu Wanyin let out a long sigh of relief.

It seemed that all five of them were safe this time.

"System, thank goodness you're here!" Gu Wanyin said in her mind.

"This is nothing. If I weren't limited in my abilities in this horror world, I could calculate all this data in just one second!"

At this moment, Gu Wanyin and the others noticed that the files on their computer desktops had disappeared.

"Where did the files go?" other players noticed too, crying out in panic.

"Presumably... Sister Yuan is checking them," Gu Wanyin said in a grave voice.

Upon hearing this, everyone except Gu Wanyin's group felt their hearts suspend in anxiety.

"What if... I'm not sure if I calculated everything correctly."

"If I die, then I die. I'm sick of living in constant fear like this."

Some players even broke down crying.

After about ten minutes, Sister Yuan appeared again.

She looked at them with a smile and said, "Everyone did a good job with their work, but... five people had obvious errors in their files."

As soon as she finished speaking, another five people exploded on the spot!

Among them were the fat man and the curly-haired woman.

Gu Wanyin and her group's faces turned ashen.

There were twenty players in total in this instance.

Just one day had passed, and eleven were already dead!

Besides their group of five, only four players remained...

No wonder people said this instance was difficult.

How could it not be difficult with such brutal methods of death?

If it weren't for the Little Squirrel System, Dong Yue would probably be dead now too.

"Lunch break time! Everyone can have a good rest after lunch. There's new work waiting for you all in the afternoon," Sister Yuan announced.

Upon hearing this, people's faces turned pale again.

More work in the afternoon?

Would they die again if they didn't complete it or did it wrong?

Gu Wanyin kept her eyes fixed on Sister Yuan.

So far, all the death conditions were related to Sister Yuan.

Death would come from not opening the door for Sister Yuan at night, or failing to complete the work tasks she assigned.

So what if... there was no Sister Yuan?

Would that solve the instance?

After all, there hadn't been any clues about clearing the instance yet.

Gu Wanyin's eyes darkened.

If this continued, they would all probably be worn to death.

After all, the Little Squirrel System couldn't exert its full power in this horror world.

If Sister Yuan's assigned work became increasingly difficult, how would they complete it?

The only solution now was...

Sister Yuan seemed not to notice their grim expressions or the scattered flesh and blood, and turned to get the lunch boxes.

After a while, she returned carrying many lunch boxes and began distributing them.

When she handed a lunch box to Gu Wanyin, Gu Wanyin smiled and said, "Thank you, Sister Yuan."

She was the only one who dared to speak to Sister Yuan at this time.

Sister Yuan looked at her with surprise, then smiled again.

"Not bad, you must be a good employee!"

"Of course," Gu Wanyin said with a smile.

The other players looked at her with surprise and fear, not understanding why she was engaging Sister Yuan in conversation.

After all, in their eyes, Sister Yuan was now a murderous demon.

Gu Wanyin put the lunch box aside and said to Sister Yuan, "Sister Yuan, I have some work-related questions. Could you come closer?"

Sister Yuan smiled and said, "Of course, I love answering work-related questions..."

Before she could finish speaking, Gu Wanyin suddenly pulled out a knife from her bag and stabbed it directly into Sister Yuan's heart!

Sister Yuan's eyes widened in disbelief as she stared at her: "You... you dare..."

The other players were also shocked by her action, some even screaming.

"Tch, couldn't kill her in one strike," Gu Wanyin muttered dissatisfied.

At this moment, Gu Han and the others also reacted.

Gu Han immediately took out her hammer and rushed over, smashing it into Sister Yuan's head.

Her skull split open instantly.

"What are you doing?" a player screamed, "How could you kill the key NPC? You..."

Before he could finish speaking, he saw the black vortex for exiting the instance appear nearby.

"What's going on? We passed? We can leave?" a player shouted in joy.

"So killing Sister Yuan was the way to clear the instance? It was that simple!" Dong Yue exclaimed in disbelief.

"It's not that simple," Gu Wanyin pulled out a piece of paper to wipe the blood off her knife blade. "Few players would dare to directly attack an NPC."

But she had already figured it out earlier. Since entering this instance, apart from the receptionist downstairs who seemed irrelevant, Sister Yuan was the only NPC who had appeared.

So it was very likely that Sister Yuan was the key to clearing the instance.

Either the players killed Sister Yuan directly to clear it,

Or Sister Yuan would wear all the players down to death with endless work tasks.

Although she wasn't completely certain about her theory, if she was going to gamble... she might as well go all in.

The fact proved she had won the bet.

"Alright, let's get out of here quickly."

The players entered the passage one after another. As Gu Wanyin packed her bag and was about to enter, she suddenly heard the system's excited voice.

"Host, they're back, my Doctor is back!"