63: Chapter 63 Doomsday Mall Upgrade

The smile on Qi Yin's lips deepened.

Everything was under her control.

When she turned around, she returned to her usual calm.

"What? Anything else?"

The light screen stammered, "You don't want to upgrade? Upgrading can unlock more products and services in the Doomsday Mall; it would be of great benefit to you."

It thought it could manipulate Qi Yin this way, but unfortunately, it was mistaken.

Qi Yin spread her hands, "I've taken a look, and honestly, it doesn't matter to me whether you're around or not."

After all, relying on the spiritual spring water, she could craft recovery pills by hand herself.

Although the effect was slightly inferior to the recovery potions in the Doomsday Mall, the advantage was that she could have as many as she wanted; if one wasn't enough, she could just drink a whole bottle.

Therefore, there were very few items she currently needed to exchange for in the Doomsday Mall.

"You, how can you think that? That's only for now; later on, you won't be able to do without me." Two large exclamation marks appeared on the light screen.

It turned its head, wanting to find an external helper to speak on its behalf.

However, Xiao Yu had long since escaped the scene of carnage and hidden in the castle study to watch TV.

Seeing its pitiful little appearance, Qi Yin didn't fall for it.

A cold, unfeeling machine would not possess so-called emotions.

"That still doesn't change the fact that I don't need you right now. One final price: 1000 crystal cores to upgrade. If that doesn't work, then let's not talk about it."

The exclamation marks on the light screen disappeared, replaced by three large red question marks.

"Why don't you just go rob someone?"

Qi Yin replied, "Isn't that exactly what I'm doing? Just tell me, do you agree or not?"

The light screen was at a loss, so angry it started glitching and making sizzling sounds.

Seeing that it didn't say anything for a long time, Qi Yin had no choice but to pout, "Fine, then I'm leaving."

"Hey, hey, hey, you're practically a bandit! 1000 crystal cores isn't impossible, but you have to agree to one condition."

Rubbing her chin, Qi Yin asked, "What condition?"

It started stammering again.

"You have to promise me that you'll come to me to buy things more often in the future."

"Oh? Are you trying to force a sale now?"

The light screen was even angrier, "Just tell me if you agree or not."

Qi Yin thought about it; whether she bought anything or not would be up to her anyway, so there was no loss.

"Fine, I agree."

Then, in an instant, the light screen transformed into a huge curtain of light.

"Please confirm whether you wish to consume 1000 first-level crystal cores to upgrade?"

"Confirm!"

"Buzz!"

Accompanied by a buzzing sound, an announcement voice rang out.

"Congratulations on upgrading the Doomsday Mall to Second-level. You will unlock the following items."

【Primary Spiritual power Recovery Potion: Can restore Spiritual power for Ability Users below Second-level within three minutes after exhaustion. Price: 20 first-level crystal cores.】

【Intermediate Spiritual power Recovery Potion: Can restore Spiritual power for Ability Users below level five within one minute after exhaustion. Price: 50 first-level crystal cores.】

【Supernatural Ability Awakening Pill: Ability Users who have already awakened a Supernatural Ability can awaken a new one after taking this. Price: 200 first-level crystal cores. Note: The pain after consumption is more than an average person can bear; please use with caution.】

【Material Vending System: Can place special vending machines at any location, acting as the seller to sell any item. The currency form is determined by the seller. Each time a vending machine is placed, it requires a payment of 1000 first-level crystal cores or higher-level crystal cores; quantity is currently set as tentative.】

【Additionally, a hidden benefit gift pack for the Doomsday Mall upgrade is included!】

Seemingly aware of its own value, the voice from the light curtain sounded rather smug.

"How about that? Those 1000 crystal cores were worth it, right? I told you I was very useful."

It had to be said, the items unlocked this time really hit the mark for Qi Yin.

Every battle was a fight for her life, a dance on the blade's edge. Spiritual power recovery potions were too important for a Spiritual-type Ability User like her.

The Supernatural Ability Awakening Pill could assist team members in awakening new Supernatural Abilities. Having multiple Supernatural Abilities meant an extra layer of capital for survival.

However, regarding this pain that was more than an average person could bear, she still had to go back and ask for their own opinions.

Paired with the spiritual spring water, it should be much better.

And this Material Vending System—she had a feeling it would come in very handy in the future.

Although her heart was already surging, Qi Yin showed nothing on her face.

"It's just average. You still need to work harder, Xiao Guang."

This was the new name Qi Yin had thought of after a long time; otherwise, she wouldn't know what to call this little thing.

If she wasn't mistaken, this light curtain actually had a touch of humanity; its sides would turn red.

"What do you mean 'Xiao Guang'? That sounds terrible."

Then, it turned off the screen and disappeared.

It didn't forget to leave a line of large text in the air: "Don't forget to come find me to buy things!"

"Quite the tsundere! But what is this benefit gift pack..."

Just as Qi Yin was feeling excited about the two pieces of good news today, Chen Jun's slightly agitated voice came through the communicator.

"Boss, come to the laboratory quickly, there's an important breakthrough."

Qi Yin immediately flashed out of the space and, while no one was paying attention, headed to the laboratory in the cave shelter.

Xiao Bai sensed her movement, jumped up from its comfortable nest, and followed behind her.

Dr. Chen Jun and his team were the laboratory's most precious asset.

Presumably, calling her at this moment meant that there was progress in the "Stinger" research.

In the laboratory, various instruments emitted faint humming sounds.

Chen Jun stood outside an isolation room enclosed by explosion-proof glass, his tone unable to hide his excitement.

"Boss, look!" He pointed to the device inside the isolation room.

"The first version of the Stinger, the first energy excitation test, was a success."

Qi Yin stopped in her tracks. Inside the isolation room was fixed a metal device with a strange shape, its whole body shimmering with a faint blue light.

It was about half a meter long and full of a futuristic technological vibe.

In terms of appearance, it fit her imagination of a portable individual energy weapon perfectly.

However, what she was more concerned with right now was the actual combat data.

"What about the effectiveness?"

Dr. Chen Jun had long expected her to ask this and immediately brought up the test data.

"The people you sent over the past two days have already mastered how to use the first version of the Stinger. This is the data from when they took it to attack the monsters outside."

The data was arranged neatly, and Qi Yin could understand it easily.

"They arranged for some people to specifically approach the monsters, while others used the Stinger to attack."

"The Stinger automatically identifies targets. The penetration power reached 80% of expectations, energy utilization increased by 30%, and the stability of continuous firing also significantly improved."

"Moreover, even if the distance between humans and monsters is very close, the Stinger will not cause harm to humans."

Qi Yin understood. Compared to her previous life, this was already a huge improvement.

"In other words, as long as there is sufficient energy, this is a sharp weapon for dealing with zombies."

Once the "Stinger" could be mass-produced, their overall combat effectiveness would see a qualitative leap.

Dr. Chen Jun nodded, "If you call those monsters outside zombies, then indeed that is the case."

He was very satisfied with the Stinger; it was his proudest work.

But...

Sensing his hesitation, Qi Yin spoke directly, "What does the Doctor want to say?"

"Um, Boss, I heard that outside, everything is in chaos. Is that true?"

It really wasn't Chen Jun's fault that he didn't know the current situation; for the sake of the Stinger, he had been holed up for a very, very long time.

Qi Yin faced the "Stinger." No matter how much Chen Jun didn't want to admit it, the disaster was already right in their faces.

"It is true!"