Looking at the pairs of eyes filled with curiosity, Lin Tian had no choice but to continue his role as a teacher: "For a person, the body is the corporeal, the soul is spiritual. If we use this analogy, in zombie blood, the spiritual imprint is the spiritual, and the energy is the corporeal."

"You are a Demon Exterminating Master, you should know, the energy contained in zombie blood is immensely powerful, but there's one problem, this energy is exceedingly violent. Both ordinary Blood Clan members and regular people cannot withstand it, this is the violent factor within the energy."

"The violence of the spirit, combined with the violence of the energy, under dual influence, plus the impact of other medicinal materials, makes those who consume Blood Angel unable to reduce the side effects from Blood Angel, these are the two main reasons for Blood Angel's side effects." Lin Tian explained everything in one breath.

"I see..." Musa suddenly understood and said, "No wonder I couldn't separate the violent factors of Blood Angel no matter what I tried, it turns out to be deeply entrenched."

"It is indeed deeply entrenched, but it's not impossible to eliminate." Lin Tian said with a slight smile.

"Really? What method?" Zhang Lingyu and Musa asked simultaneously.

Charlotte also looked at Lin Tian expectantly, and this time Lin Tian didn't keep them in suspense, he directly said, "The spirit is the soul, invisible and without form, undetectable by medicine, but the Dao techniques of a Demon Exorcist can be. Lingyu can use Dao techniques to suppress the violent spirit, I will use medicine to harmonize the violent energy, with both approaches one can certainly resolve the side effects of the Blood Angel."

Lin Tian spoke in general terms, but implementing it would be a hundred times more complicated, what Dao techniques to use, what medicine, how to harmonize, this involves the Pharmacist's level, any slightest error would lead to failure.

This is also why, with Oda Manaka's capabilities and the support of the Sun Shadow Association, they couldn't solve this problem, because the process is too complex, and she alone as a pharmacist cannot accomplish it.

As for whether a more advanced pharmacist can do it, such as a senior pharmacist, Lin Tian did not know, because he still had a long way to go before becoming a senior pharmacist, he couldn't estimate what level a senior pharmacist would be.

Zhang Lingyu was also aware of the difficulty, it sounds easy, but doing it is hard, she hesitated and said, "I agree with your plan, but where is the conjunction point for our dual approach?"

"The conjunction point, this is important, I've already simulated it in my mind. I will first extract the essence of the medicine, then fuse it with zombie blood, the moment of fusion is the conjunction point. You need to time it perfectly, and I will use my pharmaceutical techniques, control the flame, attack both inside and out to break the side effects of the Blood Angel." Lin Tian said solemnly.

He had to be serious, because even though he had simulated it multiple times, the success rate was not high, and there's a big difference between simulation and reality, especially since this time it's two people making the medicine together, the degree of tacit cooperation will greatly affect the results.

"I understand, but I have a better suggestion, I will first set up a Soul Suppressing Array around the cauldron, and when the medicine fuses, just activate the array, this is faster than chanting incantations and releasing Dao techniques, avoiding missing the fusion timing." Zhang Lingyu suddenly realized and proposed a better suggestion.

"That's exactly what I wanted, I didn't expect you already figured it out, we indeed have a tacit understanding, like hearts connected." Lin Tian said happily.

He felt it was very peculiar, clearly, he and Zhang Lingyu, a zombie and a Heavenly Master, natural enemies, yet he had a kind of unique chemistry with her, whether in the great battle at the Shrine, a venture into the Netherworld, or the chaotic struggle at the ancient battlefield with Charlotte, there was never a time they fought side by side and weren't unexpectedly in sync.

Zhang Lingyu's eyes seemed distant, clearly recalling the past battles alongside Lin Tian, she also found it strange, clearly Lin Tian is her target to eliminate demons and monsters, yet she didn't attack him, instead, she cooperated multiple times, and quite harmoniously in fact.

Charlotte glanced back and forth between Lin Tian and Zhang Lingyu, a mysterious light flashed in her eyes, she pretended to cough twice, reminding them: "We can start preparing the medicine now, the medicinal properties will change if the materials leave the pharmacy for too long."

Lin Tian looked curiously at Charlotte, medicinal materials were contained in special boxes, there was no chance of property changes, Charlotte was clearly just making up something to say.

However, Lin Tian didn't think much, it was right before brewing, he didn't have time to think more. Lin Tian walked to the experiment table, and carefully observed the arranged medicinal materials.

Zombie blood was a given, the first box contained a few black feathers, about the length of a palm, and slightly wider than a finger, gleaming black.

Whether in "Shennong Emperor's Medical Scripture" or the research materials of "Blood Angel", this feather was documented, and these feathers were called Netherworld Crow's feathers.

The Netherworld Crow is a variant of the crow, and very different from typical crows, most crows feed on grains, insects, and fruits, but Netherworld Crows do not.

It is said that Netherworld Crows are incredibly scent-sensitive, able to sense the aura of rot and death, possibly because of this, they spend their lives feeding on corpses, animals' corpses, and sometimes even humans'.

Normally, people rarely see Netherworld Crows, but during wartime, on battlefields strewn with corpses, if one dares to step foot on such unclaimed corpse-laden fields, they might witness Netherworld Crows pecking on bodies.

In Western countries, legends say Netherworld Crows are death messengers from the Netherworld, they're not pecking at corpses but harvesting souls of the dead.

No matter how described, Netherworld Crows connect to images of death, decay, corpses, they are thoroughly sinister creatures.

Not all Netherworld Crow feathers can be called Netherworld Crow feathers, the term refers to their tail feathers. The tail feathers are quite unique, a Netherworld Crow grows a tail feather every year after maturation, growing to nine tail feathers in nine years, reaching the full number.

Netherworld Crows die after growing nine tail feathers, but it's said they don't truly die, rather they gather enough souls, shucking the physical form, taking their souls back to Hell.

Of course, this is just legend, but it also showcases the mystique of Netherworld Crow tail feathers, the Netherworld Crow's lifetime spiritual energy is concentrated in the tail feathers, using them in medicine has wondrous effects.

Netherworld Crow's feathers are one of the most important medicinal ingredients in the "Blood Angel" formula, second only to the zombie blood.

"What feathers are these?" Zhang Lingyu curiously asked as Lin Tian opened the box.

The Netherworld Crow's feathers evoke discomfort, Lin Tian initially didn't want to say, but considering Zhang Lingyu's nerves, she probably wouldn't be afraid, so he explained truthfully.

Unexpectedly, after hearing, the female Heavenly Master's face turned somewhat pale, she backed up a few steps, distancing from the Netherworld Crow's feathers, her current demeanor was like a frightened, scared little girl, which was a far cry from her usual awe-inspiring female Heavenly Master persona.

Lin Tian was a bit puzzled, tenderly holding her hand, he asked, "Lingyu, what's wrong?"

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