The magnetic field rotation that began in Jujutsu Kaisen

Far from enough.

"I need more control," Dong Yangping said. "More precise adjustments. Longer durations."

Professor Sato calmed down and began to think:

"The issue of intensity can be addressed through continuous training. Your physical body is constantly improving, and the intensity of your bioelectricity is increasing in tandem. The key is control."

He drew a new diagram on the whiteboard:

"To maintain stable levitation, you need more than just an upward force. You also need balance. Any deviation in any direction—forward, backward, left, or right—requires an immediate adjustment of the magnetic field distribution to correct it."

"It's like standing on a tightrope," Engineer Yamada added. "No, it's harder than that. A tightrope at least has a support point. You're in the air, with no support at all."

Dongyang Ping nodded.

He knew it wouldn't be easy.

But those three seconds had given him a glimpse of possibility.

I've found the direction.

"I need more practice," he said. "And I need better monitoring equipment that can display the distribution of the magnetic field in my body in real time."

Dr. Nakamura raised his hand: "I can do this. I can use a Hall effect sensor array to create a magnetic field distribution monitoring system."

"I need a more precise control method," Dong Yangping said, looking at Professor Sato. "How do the direction, intensity, and frequency of the current affect the distribution of the magnetic field? Is there a more systematic theory?"

Professor Sato adjusted his glasses:

"Yes. There's a branch of electromagnetism called 'electromagnetic field theory.' Maxwell's equations are the foundation. We can start from there, combine them with your specific circumstances, and build a control model that suits your needs."

"I need a place to practice," Higashi Yohei said, looking at Engineer Yamada. "It needs to be big enough, safe enough, and won't disturb others."

Engineer Yamada thought for a moment:

"That open space behind the factory can be renovated. Lay an insulating layer on the ground and install protective netting around it. That should be enough."

Dongyang Ping nodded.

"Let's begin then."

Over the next few days, Dong Yangping devoted almost all his time to this research.

During the day, he discussed theories with several experts, learned the basics of electromagnetism, and analyzed the data from each experiment.

In the evening, he practiced repeatedly in the renovated training ground.

At first, he could only hover for a second or two.

Then it's three or four seconds.

Then five or six seconds.

Every step forward is the result of countless failures.

Sometimes the direction is lost and the person flies out sideways.

Sometimes the strength is unstable, and it floats halfway before falling back down.

Sometimes it loses its balance and flips several times in the air before landing.

But Dong Yangping never gives up; he gets up every time he falls.

If you fail, try again.

If you don't understand, ask; once you understand, practice.

A week later, on the training field.

Dong Yangping stood in the center of the open space with his eyes closed.

Blue lightning slowly flowed across his body.

It was no longer the violent flickering of before, but a stable, even light.

He has learned to control himself.

They learned to form stable circuits of bioelectricity within the body, to adjust the direction of current flow according to the required magnetic field direction, and to finely adjust the distribution of the magnetic field in real time during levitation to maintain balance.

He opened his eyes.

Both feet left the ground and rose steadily and slowly.

ten centimeters.

Twenty centimeters.

one meter.

Two meters.

He stopped at a height of two meters, suspended in mid-air.

There was no shaking, no trembling.

It floated steadily, as if standing on flat ground.

Several experts around him held their breath, afraid of making the slightest sound to disturb him.

Dong Yangping looked down at the ground, then looked up at the sky.

Then he smiled.

He took a step.

It's not that you stepped into thin air, but that you stepped into the air.

Where my feet landed, the air seemed to freeze into invisible steps.

He walked step by step in the air.

With each step, the elevation rises.

three meters.

five meters.

Ten meters!

He hovered ten meters in the air, looking down over the entire training field.

Professor Sato tilted his head back, his mouth agape wide enough to fit an egg.

Dr. Nakamura was frantically scribbling something in his notebook, his hands trembling.

Engineer Yamada stood there, his face filled with excitement and pride.

Dong Yangping took a deep breath.

Then, he deactivated the magnetic field and slowly descended.

The moment his feet touched the ground, his knees bent slightly, dissipating the impact.

"It's a success."

This time, it was a true success.

Over the next few days, Dong Yangping continued to refine this ability.

He began to try more complex movements.

Turning in the air.

Accelerate in the air.

It suddenly changed direction in mid-air.

even--

Resting while lying in the air.

"You know what," he said to Yuki Tsukumo one evening, sitting in his yard, "this feeling is really amazing."

Tsukumo Yuki rolled her eyes.

She has gone from being shocked at first to taking it for granted now.

This man survived being struck by lightning and even developed the ability to fly.

Is there anything he can't do?

When do you plan to go public?

"Not publicly," Dong Yangping said. "At least not now."

He paused for a moment: "This ability is my trump card. The fewer people who know about it, the better."

Ninety-nine nodded.

She understands.

In this world, the more cards you have up your sleeve, the longer you can survive.

"What about those scientists?" she asked. "Are they trustworthy?"

"It's credible," Dong Yangping said. "I gave them enough money and enough space for research. They know what they should say and what they shouldn't say."

Dong Yangping naturally didn't believe in any so-called confidentiality agreement; it was just a piece of waste paper.

But Dong Yangping knew very well, and they knew very well, that if they betrayed Dong Yangping, even if they could escape to the ends of the earth, they would not be able to escape the brutal killing by this inhuman creature, Dong Yangping.

It was a brutal killing!

With Dong Yangping's body reaching this level, and having mastered the abilities of bioelectricity and magnetic fields, all cold weapons and hot weapons are no longer effective against him.

After all, even nuclear bomb explosions require electronic control.

Dong Yangping looked at the night sky: "Moreover, my research has only just begun. Flight is just the first step. The applications of magnetic fields go far beyond this."

Yuki Tsukumo asked curiously, "What else can we do?"

Dongyang Ping thought for a moment.

"For example—" He raised his right hand, his five fingers spread.

An invisible force emanated from his hand, and an iron bucket in the yard suddenly flew up and floated towards him.

Then it stopped in front of him, hovering in mid-air.

Ninety-nine Yuki stared wide-eyed.

"This is……"

"Magnetic traction," Dong Yangping said. "It uses a magnetic field to attract metallic objects. It works on the same principle as flight, only in a different direction."

With a wave of his hand, the bucket flew back and landed steadily in its original spot.

"For example—" He raised his left hand again.

This time, it was a force of repulsion.

The bucket flew up again, but instead of flying towards him, it flew away into the distance.

"Magnetic repulsion".

Tsukumo Yuki remained silent.

After a long silence, she asked, "Anything else?"

Dongyang Ping smiled.

"There's much more," he said. "Magnetic fields can shield detectors, interfere with electronic devices, and..."

He paused for a moment, then said, "It can sense everything around it."

He closed his eyes.

The magnetic field generated by bioelectricity spreads outwards in all directions from him.

It's not the kind of energy sensation you get from curses.

It is magnetic field induction.

Everything around him that is magnetic or conductive is within his perception range.

The body of Tsukumo Yuki can be sensed because her blood contains iron ions.

Shen'er's knife is a specially made cursed tool containing metal, and it can be sensed.

Underground water pipes, electrical wires in the walls, cars passing by in the distance—

Everything can be perceived.

How large is the area?

Dongyang Ping tried it.

If he were to unleash his full power, he could clearly sense all metallic objects within a radius of 500 meters.

This is the ability of magnetic field induction.

"Look," Dong Yangping opened his eyes, "now even without my eyes, I can know where you are. I know how fast your heart is beating, and I know how your blood is flowing."

Ninety-nine Yuki subconsciously took a step back.

"Don't be afraid," Dong Yangping said. "I can only sense, not control. Your blood is made of iron ions, not iron blocks, so I can't affect it. Besides, you also have cursed power within you."

Ninety-nine breathed a sigh of relief.

But I still feel uneasy.

This man is becoming less and less like a human being.

A few more days passed.

Dong Yangping was practicing on the training field when Shen Er arrived.

He looked at Dong Yangping, who was suspended in mid-air, with a complicated expression.

"What is this?"

"Fly," Dong Yangping said. "Want to come up and give it a try?"

He shook his head.

He is a tyrant of heaven and earth; he only feels safe when his feet are firmly on the ground.

In the air, with no fulcrum or anything to lean on, it was a desperate situation for him.

Why are you practicing this?

Dongyangping slowly descended.

"For the future," he said. "Most of a sorcerer's battles take place on the ground. But what if one day I encounter an enemy that can attack from the air? What if one day I need to escape by air?"

He paused for a moment: "Having more skills means having more options for survival."

He remained silent.

This is true.

In this world, having one more skill is like having one more life.

"Besides," Dong Yangping laughed, "don't you think the feeling of flying is amazing?"

Shen Er looked at him and suddenly asked, "How strong are you now?"

Dongyang Ping thought for a moment.

"I don't know. But it's definitely better than it was a month ago."

Shen'er grinned and said, "Want to fight?"

After all, it wasn't just Dongyangping who made progress!