Qin Yi returned to the room, drank the secret discoloration medicine, looked down at the skin on the back of his hands slowly turning into the color of stone, pulled up his sleeves, and the skin above the wrist also turned into the color of stone.

Qin Yi gently touched his skin with his hand. It felt cool and slippery, as if he was touching the skin of a snake.

"Sure enough, the skin changed and became the skin of a chameleon. Unfortunately, unlike the secret medicine of scale armor, it cannot fully exert its extraordinary properties without the supporting secret technique."

However, this extraordinary property of color change seems to be of little use to him.

"This discoloration has become just the color of my skin, not real invisibility. Moreover, it is just the skin and the clothes have not changed color. In this way, the applicability is even worse, especially since I have a more advanced and practical invisibility

Technique."

By the way, invisibility.

The principle of invisibility should be similar to color changing. Is it possible to use invisibility instead of secret art?

If it is possible, then the secret technique will be simple, and you can directly use the secret technique of swordsmanship instead.

After Qin Yi tried it, he shook his head helplessly and said disappointedly: "The two are not the same system at all, and it is impossible to replace the specialized color-changing secret technique."

Sure enough, there is no such good thing in this world.

If you want to fully utilize the extraordinary properties of the color-changing secret medicine, you can only develop specially matched secret techniques.

Do you want to study it?

"Although there is invisibility, its practicality is too poor, but..."

What Qin Yi wants to study is the secret technique of transformation, not just the secret technique of color change.

The supporting secret techniques still need to be studied, but the purpose is not to study the secret techniques of color change, but to study the related secret techniques of transforming into a chameleon.

"If I have a chance in the future, I'll try to dissect a chameleon."

I don’t know if through anatomy and visualization, it is possible to study how to transform into a chameleon after taking the secret color-changing medicine, just like the devil’s secret technique.

If it is feasible, then it means that the demon transformation is not an isolated case, and the secret technique of transformation will also take the most critical and important step.

After Qin Yi habitually counted the harvest, he once again began to seize the time to crack the Qilin Formation.

…

On the fourth day after arriving in the underground palace, the pharmaceutical room.

"Today we learn how to make the secret medicine for dog nose."

"The main ingredients of the secret medicine for the dog's nose are the nose of the devil dog and the precerebral fluid. The auxiliary ingredients are the soul-robbing algae, mimosa, and piranha..."

After the teaching was over, Qin Yi left the corpses of the four demons at Pluto's request, returned to the room, and began to count the harvest as usual.

Qin Yi glanced at the Secret Canine Nose Medicine in his hand, and then at the Secret Canine Nose Technique in the skill bar.

"Can this skill that I, the demon slayer, have developed be used as the secret skill corresponding to the canine nose secret medicine?"

Qin Yi decided to experiment.

Take the secret medicine and perform the secret technique.

"Hey, it actually works!"

After studying,

I only tried the secret technique of the dog nose once and never used it again. After taking the secret medicine, my proficiency began to increase automatically before I started to perform the secret technique. Once I started to perform the secret technique of the dog nose, my proficiency increased rapidly.

's flying.

"This is an unexpected discovery. I didn't expect that the secret medicine can increase the efficiency of skill proficiency?"

If each skill can develop a corresponding secret medicine, wouldn't it be equivalent to cheating if you use skills?

However, Qin Yi also encountered the issue of cost-effectiveness.

By the time he was developing the secret medicine, he had probably already maxed out his skill proficiency.

However, Qin Yi then made a new discovery.

"The combination of secret techniques and secret medicines has made the power much greater. There seems to be some kind of qualitative change between the two. It feels like the power is almost the same as magical powers."

Develop the corresponding secret medicine and increase the amount.

It seems that the secret medicine is more useful than I thought before.

So, is it still being developed?

"It's worthless!"

Once the skill reaches level 6, it can be transformed into a magical power.

This process does not take long. Is it really necessary to develop a corresponding secret medicine specifically for this?

Finally, Qin Yi made a decision.

"Wait until the secret medicine reaches level five or above, and then we can see whether to develop it based on the specific conditions of the skills."

Qin Yi was doing two things at once, brushing up his skills and cracking the Qilin Formation at the same time.

The effect of the secret medicine has ended, and the secret technique of the dog nose has reached the second level.

After Qin Yi exclaimed that taking the medicine would make him feel better, he concentrated on cracking the Qilin Formation.

…

The fifth day after arriving at the underground palace.

Qin Yi learned the secret medicine of bear paw and left behind five devil corpses. After returning to the room, he looked at the two hands that turned into bear paws after taking the secret medicine of bear paw. He clicked his tongue and said in wonder: "The color change before and the

The canine nose and even the scales are not as powerful as the impact they gave me this time."

The discoloration is the skin, and the canine nose is the nose. Even if the scale armor secret medicine is combined with the demon transformation, in fact, because of the higher similarity between the demon and the human race, Qin Yi does not feel as much as this change.

big.

This time it changed directly from human hands to bear paws.

"The secret technique of transformation is absolutely feasible!"

This time, the transformation of human hands into bear paws gave Qin Yi enough confidence in the success of the series of secret techniques of transformation.

Since a human hand can turn into a bear's paw, then a human body can also turn into a bear body.

If the human body can transform into the body of a bear, then the human body can naturally transform into other magical beasts.

This discovery made Qin Yi very excited, and he wished he could put down everything now and study the art of transformation.

Unfortunately, the highest priority now is to crack the Qilin Formation.

Research on the secret techniques of the transformation series can only begin after everything in the underground palace is completed.

…

The sixth day after arriving at the underground palace.

Pharmaceutical room.

After Qin Yi walked in, he was shocked when he saw Pluto's thick dark circles, bloodshot eyeballs, and tiredness on his face.

"Senior, there is no end to the research on the secret medicine. You should pay attention to rest."

Starting from yesterday, Pluto no longer went to Qin Yi in person, but asked people to bring Qin Yi to the pharmacy.

This is obviously a good phenomenon.

It is recognition of him.

Pluto waved his hand and said: "I only have three corpses left with you, right?"

Pluto did not wait for Qin Yi to answer, and then asked: "Three corpses are not enough. My research has reached a critical moment and I need more demon corpses. What other secret medicine do you want to learn? Let's continue the deal."

Qin Yi asked: "Senior, this is up to you, right? What secret medicine do you want to teach me? If I had to choose, I would naturally choose the secret medicine that only the Demon King knows and can make people fly into the sky and escape from the earth.

Already."

Pluto lowered his head, frowned, pondered for a moment, and replied: "Do you want the Secret Medicine of Mountain Crossing and the Secret Medicine of Flying Wings? Yes, but how many demon corpses do you have left? There are twenty.

? Less than twenty I don’t agree with.”

Qin Yi shook his head regretfully and said: "I only have fifteen corpses of demon soldiers left. It seems that I can't learn anymore."

After saying that, Qin Yi was about to leave. Pluto looked at Qin Yi's back, gritted his teeth and said: "Fifteen, fifteen, I'll change."

Qin Yi turned around with a smile and said, "Okay, deal."

Pluto naturally saw that Qin Yi had just pretended to leave, but was actually making a counteroffer.

However, Pluto just glanced at Qin Yi angrily, and then started today's teaching.

"Let's learn the secret medicine of traveling through mountains today."

"The production of the mountain secret medicine is much more difficult than the previous four secret medicines..."

After the teaching was over, Qin Yi left the medicine room and returned to his room, leaving behind the corpses of the eight demons.

After Qin Yi took the secret pangolin medicine, the surface of his body immediately changed. It was covered with a layer of khaki leather armor, and his hands turned into pangolin claws.

Qin Yi sensed the instinct of his body and walked up to the stone table. He lightly slipped his hands and walked over. The stone table seemed to turn into water and his whole body passed through it.
To be continued...