JJK: Useless Miwa

"Say Gojo-sensei, how can I create Reverse Cursed Energy?"

I asked the laughing Gojo, and asked the question that has been on my mind.

Reverse Cursed Energy is OP.

Why? Not only it can heal me, but it will be very useful against curses. Afterall, killing them with positive energy will be much easier than with negative energy.

(-x)×(-x) = x².

Meaning, if I multiply two x units of cursed energy, I will get x² units of reverse cursed energy.

And, it doesn't necessarily mean that I have to multiply equal amounts of cursed energy to get reverse cursed energy.

In theory, if I multiplied a small, let's say (-x) units of cursed energy with a big amount, let's say (-X), I could get xX amount of Reverse Cursed Energy. At the extreme, using a very small amount of cursed energy can be used to convert all my cursed energy into reverse cursed energy.

But, the problem is, I don't know how to multiply my cursed energy with cursed energy.

Mathematically speaking, multiplication is just adding a number by N times, given that N is the multiplication factor.

Practically, it can be done with positive things. But, how can we add something with itself a negative number of times?

I asked this question, and he appeared thoughtful.

"Hmm... I don't exactly know how to do it theoritically. I tried your approach when I was young, and the only one I knew who could do it is terrible at explaining it.

I learnt by instinct, flooding all my cursed energy towards my brain after I almost got killed by my neck getting stabbed-"

Well, let's try it.

Cursed energy and techniques awaken from the brain. And majority of the cursed energy is stored in the gut, the navel to be exact. But brain is the black box of cursed energy. Meaning, all information and such.

I envisioned about my some of my cursed energy come from brain, and most of cursed energy from my navel meet at my analytical part of the brain.

'MULTIPLY!'

And suddenly, I felt like something within me has changed.

I could feel like I am now a higher being!

"Throughout heaven and earth, I alone am the honoured one!"

I shouted, and I received a bonk.

"You shouldn't flood your brain with so much cursed energy. And that's not reverse cursed energy, just you getting high by sudden flooding of energy in your brain."

I heard those words, and I fell unconscious.

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And when I woke up, I was on a hospital bed, and Shoko was shouting at Gojo for being careless.

"Oh? You woke up?"

Gojo said, looking at me, and removing the bandage from one of his eye and looking at me.

Sharingan looks cooler.

"Hmm, what a surprise! You have some reverse cursed energy in your brain even now that you are conscious."

"YAY!"

"Don't get too excited yet. It took me some weeks to master consciously using reverse cursed energy without being high. And almost two years for automation.

Don't even attempt to try automation. But well, I guess getting braindead for some minutes did get some results."

"BRAINDEAD!?"

"Yup! You went braindead, but unconsciously started healing with reverse cursed energy of your own after getting some injected by Shoko here to heal your brain.

And you still have some residual in your brain.

They do say that sorcerers awaken things close to death! Hahahaha!"

...I should be more careful from now on huh...

Anyway, now that I am seeing Gojo's eyes...

"Hey Gojo-sensei, how much cursed energy do I have?"

"Hmm... A little more than I do."

"REALLY!?"

"Yup. But I know someone with more cursed energy than me. And I am very efficient in using cursed energy. My regeneration is faster than usage."

Is he talking about Geto? Since Yuta isn't here yet?

"Moreover, while having more cursed energy does have big advantage, without a technique, you can only use as much in enforcing your body as it can handle.

I think you would do better by imbuing cursed energy in weapons... Such as..."

He disappeared and reappeared faster than my eyes could follow.

He handed me a katana. A real, sharp katana.

"It's time you start using a real one instead of a wooden one.

If you have a cursed technique and just don't know about it, as this katana becomes a cursed tool, it will acquire the properties of your technique.

If you become skilled enough like Shoko to use reverse cursed energy outside of your body, maybe you can create a cursed tool with reverse cursed energy!?

Don't let the near death experience hold you back by fear! To be a jujutsu sorcerer, you need to be crazy! And think about many possibilities!"

Shoko punched Gojo, though it never touched him, and looked at me.

"You need to rest for atleast a week. No training. You can read the medical books here, and start imbuing cursed energy in your katana.

You will be discharged when I tell you."

Though her words were caring of a doctor, I could feel like she couldn't care less.

She and Gojo left, and I grinned as I unsheathed my real katana.

I can finally carry around a real weapon!

And since Gojo is really rich, he must have given me a high quality one!

I want to slash at everything with my Katana!

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(3rd PoV)

While Miwa was fangirling over a real katana, Gojo smiled as he left the hospital in the Tokyo Jujutsu High.

She was clearly hiding something. For a self-taught person, she could manipulate cursed energy rather well. Maybe she is even lying that she doesn't have a cursed technique?

But she doesn't seem to be a bad person atleast. Maybe she doesn't trust Jujutsu High. Which is a good thing, signifying that she is smart.

Well, she has slightly more cursed energy than him, only less than Geto.

She has huge potential.