Irreversible Magic

When Professor Enriques mentioned his expertise in Bloodline Magic, he became very excited and began to passionately recount the definition of "human."

"The 'human' as defined in the Wizarding World essentially refers to any being with sufficient intelligence to understand the laws of magical society and to bear some responsibility in the process of making those laws," Professor Enriques explained.

"While Fantastic Beasts like the Acromantula, the Sphinx, and the Manticore, which also possess intelligence, are capable of understanding the laws of magical society, they lack the ability to overcome their ferocious nature and therefore cannot bear any responsibility under these laws."

"Then why, despite their high intelligence, are they unable to overcome their ferocious nature?" Professor Enriques asked sharply, looking at the students below the stage. "It's because of the instincts deeply ingrained in their blood!"

"Take the Sphinx, for example. Asking questions is in their nature, and they can't change their habit of attacking others when they answer riddles incorrectly, posing a great danger to humans. That's why they're classified as beasts."

"While species like Hag and Troll may exhibit violent tendencies and savage behaviors such as eating raw meat, they can be controlled through communication. Currently, some Hag are active in Knockturn Alley, and some Troll provide security for wizards, adhering to the rules of the wizarding world."

"Of course, there has been some controversy regarding classifying them as 'humans'," Professor Enriques suddenly laughed, addressing the young wizards below. "Because the Ministry of Magic classifies the Hag as a 'human,' Centaurs and Merpeople feel insulted and wish to be classified as 'beasts.'"

"But you haven't mentioned anything about bloodlines yet!" O'Neill Hongbei, the Ravenclaw boy from before, raised his hand and asked.

"Alright, since you asked, let's get straight to the Bloodline Magic part." Professor Enriques nodded and smiled. "Let's use Werewolf and Vampire as examples."

"I think your parents all told you when you were little to stay away from Werewolf and Vampire, right?" the professor asked.

Apart from the Muggle-born wizard, everyone else in the audience nodded.

"As you all probably know, the saliva of Werewolf and Vampire is contagious and can turn other wizards into another Werewolf or Vampire!" Professor Enriques said solemnly.

"Let me add something here: if you are bitten by Werewolf or Vampire, mixing silver powder and Dittany and applying it to the wound can help it heal and save your life. However, after the wound heals, the bitten wizard will have to live as a different species..."

The young wizards looked on with a chill.

"After saying all that, what I want to tell you is that the contagion of Werewolf and Vampire is a type of Bloodline Magic!" Professor Enriques's tone unconsciously rose as he got to the crucial point.

"Their practice of fusing the toxins unique to Werewolf and Vampire into the bloodline of wizards can be seen as using magic to modify the wizarding bloodline. The modified wizards then possess new magical abilities, even if they don't want these abilities!"

Upon hearing Professor Enriques's explanation, Xiwen frowned and raised his hand.

"Do you have a question, Mr. Rozier?" the professor asked.

"As far as I know, Lycanthropy and Vampire infection are irreversible," Xiwen asked, staring intently into Professor Enriques's eyes. "I want to know, is it only these two infections that are irreversible, or is all Bloodline Magic irreversible?"

"I know what you want to ask," the professor glanced at Elshiona beside Xiwen and said softly. "In fact, all Bloodline Magic is irreversible!"

"How can something that has been completely integrated into one's bloodline be easily separated?"

"So, how were those Blood Curse broken before?" Xiwen asked, puzzled.

"There has never been a way to completely break it, Mr. Rozier," Professor Enriques sighed and said to Xiwen. "At most, we can only continue to integrate other Bloodline Magic to neutralize it, or use other magic to suppress the Blood Curse within the body."

Xiwen sat down in silence, lost in thought.

So, is Elshiona's Blood Curse essentially Vampire virus that, once it entered the bodies of the Greengrass family ancestors, took root and completely altered their bloodline, turning the entire family into transmitters of the Blood Curse?

Xiwen was so preoccupied with the Blood Curse that he didn't even notice when Defense Against the Dark Arts ended. It wasn't until Elshiona patted him on the shoulder that he finally snapped out of it.

"By the way, has your family replied to you regarding the Blood Curse?" Xiwen asked Elshiona.

"Yes, my mother wrote me a letter," Elshiona said, sounding a little downcast. "She wants me to take a break from school and go home to recuperate with a therapist."

"It's good to have someone take care of you at home; health is the most important thing!" Xiwen nodded and said to her. "So when are you planning to go home?"

"I don't want to go home," Elshiona said, looking directly at Xiwen.

Xiwen paused for a moment, then looked at her with a serious expression.

"El, the Blood Curse is no small matter! Since you have a complete solution at home, why don't you go back and stabilize it first?" Xiwen said.

"I don't want to be locked up at home, not at all!" Elshiona finally couldn't hold back her tears and raised her voice. "If you had a choice, would you be willing to spend your days undergoing various examinations and bloodline modifications just to live a few more years?"

Hearing Elshiona's tearful account, Xiwen stood frozen in place.

He suddenly remembered his life in his previous life—in order to find a way to overcome the rejection of his soul, he drank bitter medicine all day long, had to undergo doctors' tests every day, and had to endure the pain originating from his soul day after day.

However, his life was not only about his illness. The companionship of his fellow students, the care of his teachers, and the satisfaction of secretly learning new knowledge were always with him, bringing him a different feeling during the twenty years of fighting against the disease.

Thinking of this, a slight smile appeared on Xiwen's lips.

"We should at least try treatment first; who knows, maybe one day we'll suddenly recover completely?" Xiwen said.

"Moreover, the treatment process isn't as painful as you might imagine; there might even be many heartwarming stories along the way!"