Chapter 256: Selling Air

Conventional light weapons used by soldiers, such as pistols, assault rifles, and machine guns, are basically useless against Demon heads of the Fourth Grade and above.

To eliminate these Demon heads, one can only use the nation's heavy armaments, such as missiles and "big mushrooms."

However, such heavy national armaments have too great an impact, and they cannot be used unless the nation is at a life-or-death juncture.

Moreover, if these Demon heads hide inside a city to fight, would one really sacrifice millions of ordinary citizens just to eliminate one Demon head? The cost would be too high.

Meng Yifan looked at Zhang Sanfeng with some admiration; if not for his silent sacrifices, perhaps the land of Shenzhou would have long since been flowing with blood and littered with corpses.

"Yifan, here, this is the Nine Nether Evil Qi and the Demon Essence." Zhang Sanfeng handed Meng Yifan two jars made of stone.

The slightly smaller stone jar contained Evil Qi that looked like ink.

They emitted waves of cold, yin energy; if an ordinary person were to come into contact with them, they would instantly be frozen into an icicle.

Even from two or three meters away, coming into slight contact with a bit of the aura diffusing from the Evil Qi would result in a serious illness.

Even for a First Grade or Second Grade Martial Artist with vigorous blood and Qi, coming into contact with the Evil Qi would result in severe damage to their vitality.

The other stone jar, which was the size of a watermelon, contained the Demon Essence; it was the essence left behind after Meng Yifan and Zhang Sanfeng finished off those two Fourth Grade Demon heads, and Zhang Sanfeng used the Black and White Grinding Disc to grind their corpses and remove the impurities.

These Demon Essences are highly toxic to ordinary cultivators, but they are rare and precious treasures for Zombie Body Tempering and Yin Soul Condensation.

Meng Yifan stored both the Nine Nether Evil Qi and the Demon Essence into his Space Ring; with these two treasures, ghost generals like Zhang Butou and Jiang Tian, as well as Third Grade zombies like the dual-blade zombies, would have hope of breaking through to the Fourth Grade realm.

Seeing that the Fifth-grade Demon head from earlier could make Meng Yifan unable to catch his breath just by diffusing a bit of its aura made Meng Yifan feel immense pressure.

In front of that Fifth-grade Demon head, Meng Yifan was nothing more than a slightly stronger ant, one that could be crushed to death with a single step.

After Meng Yifan broke through to a Level 4 Mid-stage Cultivator, he thought he was already a powerhouse on Earth, but looking at that powerful Demon head from earlier, he realized that although Earth had entered the End of Dharma Era, there still existed some unknown, powerful entities.

This made Meng Yifan urgently want to improve his strength as quickly as possible, and the fastest way to improve his strength was to use the Game Panel to kill monsters and level up.

Meng Yifan prepared to sell the Pills, Monster Beast Meat, and air he had brought over; once he had money, he could buy a batch of weapons, ammunition, generators, transformers, and so on, and then return to the Great Martial Heavenly Dynasty World to quickly raise the ghost generals and dual-blade zombies to the Fourth Grade realm.

Once the ghost generals and zombies had all improved their realms, Meng Yifan planned to lead a great army to march out, sweep through the Monster Beasts within the Dongchuan Prefecture, accumulate Experience Value, raise his cultivation to the Fourth Grade High Rank, and then prepare to undergo the Thunder Tribulation to break through to a Fifth-grade Cultivator.

Zhang Sanfeng pointed at Meng Yifan once more, passing the cultivation method for the Sword Control Technique and the cultivation method for the Yin-Yang Millstone to Meng Yifan.

Meng Yifan browsed through them briefly and discovered that to perform the Sword Control Technique, one did not necessarily need a Flying Sword; other Dharma Treasures would also work, but performing the Sword Control Technique required consuming a large amount of Spiritual Power and Spirit Power.

After successfully cultivating it, not only could he remotely control a Flying Sword to kill enemies, but once Meng Yifan broke through to the Fifth Grade, it could even allow him to ride the sword and realize his dream of flying in the sky.

As for the Yin-Yang Millstone, it was Zhang Sanfeng's unique skill; the final move that ground down the Fourth Grade High Rank Demon head, where the Yin Domain and Yang Domain combined into a tangible Black and White Grinding Disc, was actually a Divine Ability that only a Fifth-grade Cultivator could perform.

Zhang Sanfeng had also burned his potential to be able to display a fraction of the power of his former unique skill and quickly suppress and kill the Fourth Grade High Rank Demon head.

If the Fourth and Fifth-grade Demon heads in the Demon Cave did not riot, and Zhang Sanfeng took a Demon Core to recover some of his strength, he could still hold on for a dozen days or so; if a Fifth-grade Demon head led a swarm of demons to frantically attack the seal, then Zhang Sanfeng could fall at any moment.

Therefore, regardless of whether Meng Yifan could learn them now, Zhang Sanfeng taught him all his trump-card unique skills like the Sword Control Technique and the Yin-Yang Millstone, lest these two unique skills be completely lost from Earth after he fell.

Zhang Sanfeng began to take a Demon Core, circulate his cultivation, refine the Demon Power, and recover his Spirit Power.

Meng Yifan did not disturb him again, but after bowing to Zhang Sanfeng, he returned to the small building inside the base.

Meng Yifan brewed himself a cup of tea and then pondered how to sell the Six Yang Pill, Whitening Pill, Scar Removal Pill, Monster Beast Meat, and the air from the Great Martial Heavenly Dynasty.

"Let's try it online."

Meng Yifan sat on the sofa and pondered for a moment, turned on his computer, and listed all these items online.

Mount Fuji Air Cans sold for 316 yuan, and people actually bought them; Meng Yifan thought for a moment and made the air from the Great Martial Heavenly Dynasty into air cans of similar size, pricing them at three thousand yuan per can.

The air Meng Yifan brought over could make ten thousand Air Cans; if they could all be sold for three thousand each, Meng Yifan could make thirty million.

Three thousand per Air Can—this was the most expensive air can online, and soon, someone noticed Meng Yifan's Air Cans.

A netizen named "Don't Walk the Usual Path" left a comment: "Holy crap! Three thousand for a can of air? Big brother, have you gone crazy for money? A can of air sold this expensive is almost equal to my monthly salary. Big brother, are you selling Immortal Qi? Selling it this expensive?"

Meng Yifan smiled and replied: "That's right, what I'm selling is Immortal Qi. I guarantee that after taking one breath, you'll be energized and refreshed."

"Asthma patients who inhale one can are guaranteed not to have another asthma attack for a month. Patients with chest tightness, wheezing, difficulty breathing, or labored breathing can also alleviate these symptoms by inhaling one can. If inhaled long-term, it can even prolong life."

"Big brother, how come you see a cow flying in the sky? You're too good at blowing hot air. According to you, you're not selling air, I'm afraid you're selling poison gas, right?"

This netizen clearly didn't believe what Meng Yifan said; he treated what Meng Yifan said as a joke, took a screenshot, and posted it to his social media feed.

Buying an air can was like buying a hammer, buying nothing, buying a chicken feather—it meant roughly the same thing; it was inherently full of mockery and very easy to attract everyone's attention.

A palm-sized Air Can actually selling for three thousand yuan made everyone who saw this news discuss it heatedly.

"Damn, people nowadays are truly speechless. Selling a can of air for three thousand and bragging that it can cure asthma—it really makes me laugh to death."

"This boss is too funny. He actually said that inhaling the air he sells can prolong life. Why doesn't he say he's selling Immortal Qi, and that inhaling one breath will make you instantly regain your youth?"

"You don't understand this, do you? When you talk about prolonging life, no one knows exactly how long they can live. If the seller says you inhaled one breath and extended your life by three days, you have no way to refute that he's talking nonsense. But if he said it makes you regain your youth, then after you inhale a can, there should be some obvious changes to your body; the boss's lies would be easily exposed."

"Haha, that's true."