In the laboratory at Tokyo University Medical School Hospital, Chen Yu was holding a test tube filled with bright red liquid, preparing to extract the scarlet substance with a pipette.
"Mr. Chen Yu, are you sure this is alright?" Jounouchi Hiromi looked at the bright red test tube in Chen Yu’s hands, her face showing clear worry and hesitation.
It was a Dragon Blood Potion that Chen Yu had concocted using a drop of her blood as the base; it originated from a Healing Potion recorded in the "Multiverse Universal Necromancy Spell Compendium". However, it wasn’t for the dead, but rather a rare, yet in a way, normal potion for the living, particularly for a Necromancer. After incorporating the blood of Jounouchi Hiromi, who possessed the dragon bloodline, the potion underwent a fundamental change in effects.
As for the specific effects... Chen Yu’s lab in the Mage Tower had to destroy a large number of lab rats that became extremely violent after undergoing Dragon Transformation just last night, and all Chen Yu did was administer a drop of this Dragon Blood Healing Potion into the mouths of each test rat.
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Under the influence of the potion, the rats underwent fundamental changes in size. Not only did their fur fall out and scales grow in its place, but also massive spines relative to their original size burst forth from beneath their skin, puncturing it. These rats, now five times their original size and comparable to small cats, appeared quite ferocious and scary.
Furthermore, these rats exhibited extreme aggression and uncontrollable fervor. From the onset of their mutation, they attempted to frantically attack everything around them. Their overwhelming desire to attack compelled Chen Yu, as a precaution, to have Jounouchi Hiromi use the power of her Blood River ability to completely destroy the rats after the experiment, to prevent any possibility of these creatures spreading and destroying his Necromantic Space.
These Dragon-transformed, rage-infused rats, with their insatiable desire to attack, combined with the rodents’ remarkable reproductive and gnawing abilities—if left unchecked before they all starved—would absolutely devour everything in the Necromantic Space they could sink their teeth into.
However, having witnessed the terror of the Dragon-transformed rats the night before, Jounouchi Hiromi’s worry was understandable when she saw Chen Yu taking out the Dragon Blood Potion again, an entire test tube of it.
It was like the feeling you would have if you just finished watching "Resident Evil", and then someone smashed a green test tube identical to the one from the movie right in front of you; you’d inevitably have a sense of alarm.
"Don’t worry, this isn’t the same potion I fed to the rats last night," Chen Yu reassured Jounouchi Hiromi, as he explained, "This is a newly adjusted formula that I concocted afterwards, which eliminates the adverse effects. There won’t be any problems."
In fact, Chen Yu was also startled by the violent attack instincts of the Dragon-transformed rats last night, but he quickly realized that their ferocity and desire to attack and destroy everything was influenced by three factors.
The first was the inherent aggressive instinct present in their bloodline, the second was that the dragon genes are far too powerful for mere lab rats—just a trace was enough to contaminate their original genes.
As for the third factor, it was because the blood came from Jounouchi Hiromi, and it was the source of the Blood Knight’s power.
Because Jounouchi Hiromi is a Blood Knight, and one of the Blood Knight’s abilities is to cultivate Blood Descendants through their own blood. The Blood Knights are the main component of the loyal and powerful servants in their Immortal Legion—the sharpest blade in the Blood Knight army.
Blood Knights typically create Blood Descendants by slaying powerful creatures that are capable of garnering the favor of a Blood Knight. Using the corpses of these powerful creatures combined with the blood of a Blood Knight, one can transform them into Blood Descendants who are absolutely loyal to the Blood Knights, becoming part of their Immortal Legion.
Ordinarily, Blood Knights would not exert this ability on living creatures, as the blood of a Blood Knight contains a potent force of fresh blood, strong enough to erode and destroy the sanity of a creature, turning it violent and bloodthirsty.
Of course, the more powerful the creature, the more capable it is of resisting and enduring the power in the Blood Knight’s blood, but lab rats are clearly not included in this category.
After understanding this issue, Chen Yu naturally opted for an alternative method to achieve his goal.
Chen Yu first eliminated the violent and bloodthirsty effects contained in the blood force in Jounouchi Hiromi’s blood, then he diluted the Dragon Blood Potion made with the purified blood a hundred times over before injecting it into the prepared experimental organisms. Only after the organisms showed signs of Dragon Transformation without becoming agitated and bloodthirsty did he extract blood carrying the power of the giant dragon to create a new Healing Potion.
"Is this really okay? Even if Keiko’s mother signed the agreement, consenting to our trial of new drugs on Keiko’s father, isn’t it inappropriate for you to do this?" Jounouchi Hiromi looked at Chen Yu as he drew a small amount of the potion with a pipette and then added it to a Healing Potion produced by Kyuuzai Pharmaceuticals, brought by Ryousen. She still felt uneasy.
Upon hearing Jounouchi Hiromi’s concerns, Chen Yu merely smiled nonchalantly, "Why would you think it’s inappropriate, Hiromi? Is it because there are regulations against administering unauthorized drugs to patients, or are you afraid that this potion will turn Keiko’s father violent and bloodthirsty? If it’s the latter, you have no cause for worry. This is a potion I reformulated last night, and it has been tested on animals; it won’t have such severe consequences.
As for the former, that is only to prevent some inhumane human testing. What we are doing here is not human experimentation; we are merely using some knowledge unknown to others to save lives."
Chen Yu spoke, and having mixed the Dragon Blood Healing Potion into the Healing Potion produced by Kyuuzai Pharmaceuticals, he shook the solution to blend it well.
The Healing Potion produced by Kyuuzai Pharmaceuticals was a Necromancy Healing Potion previously provided by Chen Yu, which originally should be a green, opaque liquid. However, with the enhancement of modern technology, Kyuuzai Pharmaceuticals’ product was a light green, transparent liquid.
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But now... after Chen Yu added the Dragon Blood Healing Potion, the potion had turned an orange-red color.
"Alright, Ryosen-kun, take this to the ward and have the nurse administer the injection to the patient," Chen Yu said, satisfied with the potion in hand, he nodded and handed it over to Kyuuzai Ryousen.
"Yes, Professor." Taking the vial filled with the orange-red potion, Ryousen nodded and then left the laboratory.