Douluo Continent: I came from Demon Slayer!

Chapter 98 Breakthrough in Cultivation

One month later, at the Butterfly House Laboratory.

laugh-!

A chill spread out, and the solution in the reagent bottle, containing a mixture of hundreds of medicinal properties, was undergoing a violent reaction.

Lin Yang's pupils had shrunk to the size of pinpoints as he stared intently at the reagent bottle in his hand, constantly adjusting his position based on the changes in the drug's properties.

They were afraid that even the slightest error would ruin the entire potion.

As the temperature slowly rises, specks of starlight emerge in the solution, like a sky full of stars suddenly lighting up in the darkness.

"Sigh, manufacturing medicine is no easy task!"

Lin Yang raised his hand, and his blazing soul power quickly enveloped the test tube, precisely controlling the temperature at 28.1 degrees Celsius—not a degree more.

He then gently shook it, and the starlight that should have been fleeting instantly solidified in the pale blue potion.

"call--!"

Lin Yang breathed a sigh of relief and placed the finished medicine on the shelf next to him.

There were also four identical bottles of medicine on the shelf, which were all the results of his recent research.

Concentration Potion: After taking it, those below the sixth ring can enter a "concentration" state, in which meditation efficiency is increased by 300%.

It can be said that every medicine here contains all of Lin Yang's past knowledge and hard work.

Unfortunately, he had already used up the most important Starry Sky Spirit Grass, and it would take another year or two for the next one to grow.

Although the Starry Sky Divine Grass cannot be considered a true immortal herb, and can only be ranked on par with the Ninth Grade Purple Ganoderma, it is still a top-tier spiritual medicine.

The eye of ice and fire.

Lin Yang gave Lan Qin some instructions, then tilted his head back and drank the calming potion.

As the medicine entered his throat, a cool sensation instantly flooded his brain, and his consciousness became clearer than ever before.

Without any hesitation, Lin Yang leaped into the Ice and Fire Yin-Yang Eye with a "plop".

Concentration potions work best in places with abundant energy.

Moreover, the stronger one's mental strength, the longer the effects of the medicine last, and the better the results will be.

As the ice and fire energy enveloped him, Lin Yang quickly entered a state of "concentration" and began to cultivate.

He rapidly refined streams of energy, transforming them into soul power, which he continuously accumulated.

If cultivation in the past was like a car on a highway, now it's like sitting on a rocket, flying incredibly fast.

Of course, this is also thanks to Lin Yang's strong mental strength.

one day.

Two days.

Three days.

Lan Qin stood guard by the spring, and the Blue Silver Domain had been expanded to its maximum extent.

She could clearly sense that the energy of the Ice and Fire Yin-Yang Eye was slowly decreasing while the master's aura was gradually becoming stronger.

On the seventh day, the water surface at the junction of red and white suddenly burst open.

Lin Yang leaped out of the spring, surrounded by a light mist.

His eyes were bloodshot and he was listless, symptoms of mental exhaustion.

"Master," Lan Qin looked at Lin Yang with concern.

Lin Yang waved his hand: "I'm fine, let me sleep for a while."

After saying that, he didn't care where he was and lay down right next to the Yin-Yang Well of Ice and Fire. The next second, he entered the deepest state of sleep.

He is so tired!

He pushed the effects of the mind-control potion to their limit, but his mental energy was also completely drained.

The optimal meditation time for an ordinary Soul Master is between four and six hours per day.

Generally, after five hours, Soul Masters will feel obvious fatigue, and their cultivation efficiency will gradually decline.

After more than six hours, the Soul Master's spiritual power will dissipate.

At this point, meditation not only fails to achieve the desired training effect, but may also lead to danger due to a lack of concentration.

However, the calming potion forcibly suppresses the negative effects, which then erupt in a concentrated burst at the end.

Of course, there is no danger, but the downside is that the headache will last for about two or three days.

Lan Qin didn't say anything, but simply covered Lin Yang's body with strands of Blue Silver Emperor hair, just to make him more comfortable to sleep in.

A day and a night later, Lin Yang woke up with a splitting headache.

He quickly stuffed a piece of dragon's blood leaf into his mouth, and after a while, he gradually got used to it.

The calming potion worked even better than he had imagined. Combined with the unique environment of ice and fire, it directly boosted his soul power from level 36 to level 39.

It's improved by a full three levels!

However, it also places a heavy burden on mental energy.

It's like forcibly increasing the speed of a civilian engine to that of a rocket engine; it's already a testament to its resilience that it didn't explode on the spot.

If it happens a second time in a short period of time, he definitely won't be able to handle it mentally.

Moreover, the longer the medicine is left to stand, the less effective it becomes.

So he has already found suitable candidates for the remaining three bottles of medicine.

After leaving the Yin-Yang Well of Ice and Fire, Lin Yang called Xiao Wu, Dugu Yan, and Ye Lingleng over and gave each of them a calming potion.

Upon hearing about the effects of the mind-concentrating potion, the three were shocked. Wasn't this the same as cultivating artifacts?

Most importantly, the side effect is just a headache for two or three days.

Who wouldn't want this kind of cheat device?

Ye Lengleng hesitated for a moment and said, "This...this is too valuable, I can't accept it."

Lin Yang said with a smile, "Just take it. Apart from the most essential herbs, all the other rare materials are from the Ye family's collection. I can't take advantage of the Ye family for nothing."

Nothing is guaranteed to succeed, and the same goes for concocting medicine.

In his calculations, one Starry Sky Spirit-Guiding Grass could produce about ten bottles of Concentration Potion.

However, due to mistakes during the process, only four bottles were successfully obtained in the end.

Even without considering labor costs, the cost loss for each bottle is approximately 200,000 gold soul coins.

In other words, Lin Yang has already spent two million gold soul coins on these four bottles of mind-calming potions.

One million two hundred thousand gold soul coins vanished into thin air.

Even if you throw these gold soul coins into the water, you can hear them make a sound 1.2 million times.

If it weren't for the pharmaceutical business supporting him, plus the support from the Ye family, the losses alone would have been enough to make him feel the pinch for a while.

Fortunately, he has now basically mastered the knack, so the success rate should be higher if he makes it again.

Uh...maybe!

Because once you enter a state of "concentration," you are completely unprepared, Lin Yang chose to cultivate at the Dugu family's manor.

For some time now, the old poisoner has been out having fun somewhere, leaving only Dugu Yan in the entire manor.

With a poisonous array protecting the outside and Lin Yang protecting the inside, it can be said to be the safest place at present.

The three of them agreed.

In the cultivation room, Xiao Wu, Dugu Yan, and Ye Lengleng drank the potion together.

Almost instantly, the three of them had a sudden flash of inspiration and sat down to begin their cultivation.

Lin Yang clearly felt that the surrounding天地元气 (heaven and earth energy) was converging on the three of them at an astonishing speed.

Three days later, the three girls woke up one after another.

Ye Lengleng was the first to wake up, and her cultivation level had increased by two levels.

Originally level 27, now it has jumped directly to level 29.

On one hand, her cultivation level was the lowest, and on the other hand, she was just one step away from reaching level twenty-eight.

The mind-control potion merely helped her kick open that door ahead of time.

Next is Dugu Yan, whose cultivation level has increased by one level, currently at level thirty-six.

Xiao Wu was the last to wake up. The residual medicinal power of the Qi Rong Tong Tian Chrysanthemum in her body was completely refined during this cultivation, which is why she made a leap of two levels.

It was upgraded from level 33 to level 35.

Even though their heads were so bad they wanted to bang their heads against a wall, the three girls still beamed with joy after noticing the increase in their soul power.

It only took three or four days at most, but it saved them five or six months or even longer of cultivation time.

Who wouldn't love this kind of cheat-like cultivation? Who wouldn't enjoy it?

Unfortunately, this kind of medicine will not be available again anytime soon.