The magnetic field rotation that began in Jujutsu Kaisen

Tsukumo Yuki's expression was somewhat strange: "According to you, he can bring the dead back to life?"

Dong Yangping's lips twitched: "What kind of ridiculous focus are you taking?"

Dongyang Ping suddenly realized something: "You don't know how to reverse spells, do you?"

Ninety-nine nodded.

Dongyang Pingming said, "It's alright, we have a ready-made teacher, let's test it first."

The rope floated in the air, and its brain turned around, surveying its surroundings.

Lu Suo looked at the laboratory filled with various instruments, and whiteboards hanging on the walls...

"Is this your base?" Lu Suo asked.

"Yes." Dong Yangping nodded. "This will be your temporary residence from now on."

Lu Suo was stunned for a moment.

"Temporary accommodation?"

"Yes." Dong Yangping pointed to the entire laboratory. "This is your new home."

Lu Suo fell silent. It floated to the window and looked outside.

The sun was shining brightly, and the flowers in the yard were in full bloom.

"Are you planning to lock me up here?"

"For now," Dong Yangping said. "I'll release you once you've taught him the inversion technique."

Lu Suo turned his head and looked at Jiujiu Yuki.

The master sorcerer was sitting in a chair, looking at it with a complicated expression.

"Teach her to reverse spells?" Lu Suo laughed. "Can't she learn it herself?"

Yuki Tsukumo's expression was rather unpleasant.

"If I could learn that myself, would I need you?"

Lu Suo's laughter grew louder.

"Interesting. A top-tier sorcerer who can't even reverse spells. Are top-tier sorcerers this weak these days?"

It floated up to the ninety-nine Yuki and looked her up and down.

"Your total magical power is substantial, and its quality is also quite good. Although I don't know what your technique is, it should be decent, and theoretically, you should be able to learn it."

Ninety-nine Yuki frowned.

"What do you mean?"

"What I mean is," Lu Suo said, "is that what you lack is not talent, but method."

It paused.

"The principle of reversal spells is to multiply negative energy spell power to obtain positive energy reversal spells. But many people get stuck at the first step—they don't know how to make the spell power 'multiply'."

Ninety-nine Yuki seemed to be deep in thought.

Dong Yangping chimed in from the side.

"Alright, there's plenty of time for teaching. Now—"

He looked at Lu Suo.

"We'll arrange accommodation for you first."

three days later.

The entire training ground was transformed into a giant electromagnetic cage.

Special metal mesh was embedded in the walls, strong magnetic coils were laid under the ground, and more than a dozen magnetic field generators were suspended from the ceiling.

If Dong Yangping were willing, a closed magnetic field hundreds of times stronger than the Earth's magnetic field could be generated here instantly.

The rope floated in the center of the cage, looking at the dense array of equipment around it, its expression somewhat subtle.

"Are you... trying to protect yourself from thieves?"

"To protect against you."

Dongyang Ping bluntly replied, "You've lived for a thousand years; who knows what other tricks you have up your sleeve? You'd better be careful."

In other words, I don't trust you yet!

Lu Suo fell silent, finding itself unable to refute.

"Then what are these?" It looked at the pile of books stacked in the corner.

"Here you go," Dong Yangping said. "Biology, physics, astronomy, oceanography... all sorts of professional books. Don't you want to understand this world? Read the books first."

The rope floated over and used its magical power to open a book.

A Pictorial Guide to Deep-Sea Creatures.

The first page features a fish that looks like an alien creature.

It stood there, stunned, for a long time.

"What...what is this?"

Anglerfish.

Dong Yangping looked down on it because the book he was holding was an elementary school textbook: "Deep-sea fish. They have a light-emitting organ on their heads to attract prey."

Lu Suo was unusually interested!

But it had never seen anything like it before.

It turns to the next page.

A transparent, jelly-like creature.

"This is a salps," Dong Yangping said. "A deep-sea planktonic. Its body is 95% water."

The rope continued to turn.

A pink creature that looks like feathers.

"Sea pen".

An animal that looks like a flower.

"sea anemone."

A bioluminescent octopus.

"Dumbo the Deep Sea"

Lu Suo turned page after page.

Each page features a creature it has never seen before.

Every page refreshes its understanding.

It suddenly realized that what Dongyangping said might be true.

It has truly only seen the tip of the iceberg of this world.

"These books..." it began, its voice tinged with complexity, "are they all for me?"

"Yes," Dong Yangping said. "Take your time reading. There's more to come."

"Thanks."

Dong Yangping was stunned for a moment.

He thought he had misheard.

"What did you say?"

"I said thank you," Lu Suo repeated. "Even though you've locked me up here, and even though you're keeping an eye on me, these books—they're definitely ones I've never seen before."

It paused.

"Having lived for a thousand years, this is the first time someone has said they want to show me something. This is the first time someone has treated me as... someone I can learn from."

Dong Yangping sensed something was off and was momentarily speechless. This guy, so dramatic, was actually a major villain.

Dongyang Ping felt it was absurd.

"Then study hard. After you've learned it, there's something even more amazing."

He turned and walked towards the door.

He stopped at the door.

"Oh, right."

He turned around.

"Yuki's training begins today. You'll be released the moment I teach her the Reversal Spell."

Lu Suo watched his retreating figure.

"Aren't you afraid I'll teach you wrong?"

"I'm not afraid," Dong Yangping said. "I can tell whether she's learned it or not."

He walked out the door.

The door closed.

The rope floated in the air, looking at the door, and remained silent for a long time.

Then it lowered its head and continued turning the pages of the book.

A Pictorial Guide to Deep-Sea Creatures.

Page 3.

A type of jellyfish that looks like an alien spaceship.

It looked at the picture and suddenly smiled.

Having lived for a thousand years, this is the first time I've felt this way—

This world is quite interesting.

at the same time.

On the other side of the cage, Yuki Tsukumo was sitting in a chair, staring at the whiteboard in front of her.

A few lines of text were written on the whiteboard:

Negative spell power × negative spell power = positive energy (reversal spell)

Positive energy infusion technique = technique reversal

She stared at it for a long time, her brows furrowed so deeply they could trap a fly.

"What the hell does this mean?"

The saddle floated over and stopped beside her.

"You didn't learn this at the Sorcery Academy?"

"I've studied it," said Tsukumo Yuki. "But those teachers explained it in a very confusing way, with things like 'two negatives make a positive' and 'multiplication of spell power'—I couldn't understand it at all."

Lu Suo fell silent.

"Is the sorcery education in your era really that bad?"

Ninety-Nine Yuki glared at it.

"If you can do it, then you do it."

Lu Suo laughed.

"Okay. I'll do it."

It floated to the whiteboard, used its magical power to condense into a pen, and began to write.

"First, you need to understand one concept—what is magical power?"

Yuki Tsukumo thought for a moment.

"The manifestation of negative emotions?"

"Yes," Lu Suo said, "but to be more precise, spell power is a form of 'energy.' It is energy, just like electrical energy, thermal energy, and light energy."

It drew a diagram.

"Since it is energy, it can be transformed. The essence of the reversal spell is to transform negative energy spell power into positive energy reversal spells."

Ninety-nine nodded.

"I know that. But how do I convert it?"

"Good question," Lu Suo said. "The key to transformation lies in 'multiplication'."

It paused.

Do you know how magical power is generated?

"Emotional fluctuations?"

"Yes. When you experience negative emotions, your body secretes a special kind of magical particle. When two negative particles meet, they produce a positive particle."

"This is the principle of 'two negatives make a positive'."

Ninety-nine Yuki seemed to be deep in thought.

"So what I need to do is make the magical energy particles within my body collide with each other?"

"Yes," Lu Suo said, "but the difficulty lies in the fact that you can't actively control the movement of those particles. They have their own trajectories."

It drifted closer.

"So you need a 'guide'."

"A guide?"

"Something that can help you control the flow of magical power," Lu Suo said. "It could be a spell, a magical tool, or it could be—"

It paused for a moment: "The power of another person's curse."