[Jujutsu Kaisen] What is Black Flash? Details explained as record, the power, and activation conditions!

[Jujutsu Kaisen] What is Black Flash? Details explained as record, the power, and activation conditions! Jujutsu Kaisen list

This article will explain about the “Black Flash“‘s power, activation conditions, the origin of the name, the benefits, and the anime version of it.

Black Flash is one of the most important techniques in Jujutsu Kaisen. The conditions for its activation are extremely strict, and it is said to be impossible to activate intentionally, but that is why it has such extraordinary destructive power.

Let’s start with a detailed overview of the Black Flash, its power, and the conditions for its activation.

What you can learn from this article
  • Outline, power and activation conditions of Black Flash
  • The origin of the name Black Flash
  • The benefits of using Black Flash and who has used it.

This article contains spiler of Jujutsu-Kaisen

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[Jujutsu Kaisen] What is the “Black Flash”?

[Jujutsu Kaisen] What is the (C)Gege Akutami/Shueisha

The “Black Flash” is “a distortion of space that occurs the moment the curse force collides with the blow within a margin of error of 0.000001 seconds”.

In the first place, if the person is faced with a cursed spirit, they can only inflict damage with an attack that contains “cursed energy”.

Therefore, when they hit the curse, they also need to put in the cursed energy, but because it is difficult to control the cursed energy, the timing of the strike and the cursed energy usually deviates a little.

By eliminating this discrepancy to the utmost extent and applying the cursed energy at exactly the right moment to the blow, the “Black Flash” is activated.

[Jujutsu Kaisen] How powerful is the “Black Flash”?

The “Black Flash” occurs when a blow and cursed energy are struck at almost exactly the right moment.

When this is achieved, the power is far more powerful than a normal attack, and for a sorcerer like Yuji, who mainly fights with combat, it is a blow that kills.

Let’s take a look at the power of “Black Flash”.

The power of the “Black Flash” is the 2.5th power of the average power of a normal attack.

The power of the (C)Gege Akutami/Shueisha

The power of “Black Flash” is “on average the 2.5th power of a normal attack“.

The first time Yuji Itadori hit Hanami with “Black Flash”, he shattered both of her arms as she guarded him.


Even if Maki Zen’in hit Hanami with the special grade cursed tool “Playful Cloud“, her arm was only slightly damaged.

Just the fact that this damage was inflicted with bare hands against Hanami shows that it is a formidable force.

How strong is the power of Black Flash (2.5th power)?

By the way, how strong is the “The 2.5th power” setting for “Black Flash”?


For example, if Yuji’s normal attack is 10, then Black Flash is the 2.5th power of 10, it’s about 316. That’s about 32 times more powerful.

Next example, if Yuji’s normal attack is 100, then Black Flash is the 2.5th power of 100, it’s about 100000. That’s about 1000 times more powerful.

If the power of the normal attack is 1000, it will be “31622777“, which is about 31,620,000 times…


In short, the power multiplier changes depending on how you set the value of the normal attack.

For now, it’s enough to understand that “the Black Flash is much stronger than a normal attack.“. lol

Did the author, Gege Akutami Shimoda, have trouble setting the power of Black Flash?

The “2.5th power” of the Black Flash’s power setting is discussed by the author, Gege Akutami himself, in the free space in chapter 48 of volume 6 of the manga.

Two times 10 is 20.
But the second power of 10 is 100!
So the power is stronger than the double!

When his assistant heard this, he said,

But the second power of 1 is 1.
(Twice 1 is 2.)

When he pointed out as above, Mr. Gege Akutami became impatient with a mood like Munch’s cry, and later explained that “the curse power starts from 2!“.

If you like maths, you’ll definitely want to get into this, but as mentioned above, let’s just say that the black flash is a lot stronger than a normal attack. lol

The condition for the activation of Black Flash!

It is said that there are no sorcerers who can do this because the margin of error is so small.

And the faster the blow, the more difficult it is to get the timing right like Yuji Itadori.


The condition for the activation of Black Flash!(C)Gege Akutami/Shueisha

He is so physically strong that his blows reach his opponent first, and his cursed energy come much later.

This large discrepancy results in a two-stage attack that he calls “Divergent Fist“, which Satoru Gojo and Aoi Todo described as “tricky”.

However, Todo told him that it won’t work against special grade cursed spirits.

And after Aoi Todo’s point and the battle with Hanami, Yuji activated the “Black Flash“, which is a technique that uses both blows and cursed energy at the same time.

Once you have activated the Black Flash, you will be in a “zone”.

Once you have activated the Black Flash, you will be in a (C)Gege Akutami/Shueisha

As mentioned above, it is said that it is impossible to activate the “Black Flash” intentionally, but once a successful Black Flash is made, the sorcerer enters what athletes call the “zone“.

Once they have successfully activateed the “Black Flash”, whether on a whim or on their own ability, they enter the “zone“, where they feel a sense of omnipotence, as if everything else is revolving around them.

In this state, they are able to make spontaneous Black Flash, which are usually impossible to activate intentionally.

In fact, Yuji was able to perform a series of Black Flash in the Battle of Hanami.

[Jujutsu Kaisen] The name “Black Flash” comes from the black light caused by the distortion of space.

The name “Black Flash” comes from the fact that the cursed energy glows black due to the distortion of space.

The moment the Black Flash is performed, a black lightning-like glow appears around the user, creating a tremendous visual impact and destructive power.

[Jujutsu Kaisen] What are the benefits of activating the Black Flash?

We have already mentioned that the power of the “Black Flash” is tremendous, but there are other advantages to experiencing the Black Flash in addition to its destructive power.

It is extremely important for sorcerers, and which can make a huge difference to their ability as sorcerers.

You get closer to the core of the cursed energy.

You get closer to the core of the cursed energy.(C)Gege Akutami/Shueisha

By activating “Black Flash”, he will gain a much deeper understanding of his cursed energy and get closer to the “core of cursed energy“.

Aoi Todo compares the cursed energy to a foodstuff, and explains it as follows.

  • Before you activate “Black Flash”, you cook haphazardly.
  • After you activate “Black Flash”, you can cook with deep knowledge of the ingredient.

This deepens his understanding of the cursed energy, and the distance between the “core of the cursed energy” before and after the activation of the Black Flash is as great as the difference between heaven and earth.

It is therefore of vital importance for the sorcerers to have experienced the Black Flash.

It can sometimes lead to a new stage (evolution) (vol 15, chapter 130)

It can sometimes lead to a new stage (evolution) (vol 15, chapter 130)(C)Gege Akutami/Shueisha

Mahito, who is a special grade cursed spirit, also succeeded in activating Black Flash, which brought him closer to the “core of the cursed energy“.

In the 130th chapter of the 15th volume of the manga, Mahito evolved into a “Intant spirit body of distorted killing” after understanding the nature of his own soul through the Black Flash.


Even though Mahito had been growing stronger with each battle against the sorcerer, by approaching the “core of the cursed energy”, he has evolved rather than grown.

Based on his experience in battle and the “core of the cursed energy”, the “Intant spirit body of distorted killing” is the final evolutionary form of Mahito.

[Jujutsu Kaisen] Who has invoked the Black Flash? How’s the record of consecutive activation?

The “Black Flash” are extremely difficult to perform, even on a whim.

There are several characters in the series who have succeeded in doing so. Here are some of the characters who have successfully used the Black Flash.

Yuji Itadori

Black Flash user: Yuji Itadori(C)Gege Akutami/Shueisha

In the manga, Yuji Itadori has used the “Black Flash” on numerous occasions.

He activated the “Black Flash” 5 times in the battle with Hanami.

Then In the manga’s 7th volume, in chapter 61, he used the “Black Flash” against Eso, and in the Shibuya Incident, he uses it repeatedly against Mahito.

As far as the manga goes, Yuji is undoubtedly the most frequent user of the “Black Flash”.

He is also said to have been “The man chosen by the black sparks” when he used it on Eso.

Nobara Kugisaki

Black Flash user: Nobara Kugisaki(C)Gege Akutami/Shueisha

In the 61st chapter of the 7th volume of the manga, Nobara Kugisaki activated the “Black Flash” against Kechizu.

Nobara’s fighting style is based on using a nail and a hammer, and on this occasion, when she threw the nail at Kechizu, she activated the “Black Flash” and inflicted a fatal wound.

Although this was the only time that Nobara triggered the “Black Flash”, it brought her closer to the core of the cursed energy, and led to his great development as a sorceress.

Satoru Gojo

Black Flash user: Satoru Gojo(C)Gege Akutami/Shueisha

Although Satoru Gojo is never shown to have used the “Black Flash” in the manga, he is thought to have experienced it.

This is because in the explanation of Black Flash in chapter 48 of volume 6 of the manga

For those who have experienced Black Flash, as compared to those who have not, their understanding of the essence of cursed enrgy is immeasurable.

In the background of picture, there is Satoru Gojo.


The contrast between the two backgrounds suggests that those who have not experienced the “black flash” are Utahime Iori and Takuma Ino, while those who have experienced the “black flash” are Satoru Gojo and Kento Nanami.

Aoi Todo

Black Flash user: Aoi Todo(C)Gege Akutami/Shueisha

Aoi Todo is the person who taught Yuji Itadori the secret of Black Flash.

And in the 128th chapter of the 15th volume of the manga, he himself activated the Black Flash against Mahito.

As I mentioned above, it should be impossible to activate Black Flash intentionally, but Aoi Todo was already in the zone in a state of readiness, and with a high kick to Mahito, he was able to deliver the Black Flash.


Aoi Todo has a lot of talent, sense, and experience in combat, and he has a different sensibility than ordinary sorcerers, which may be the reason why he is able to perform the Black Flash to some extent.

Kento Nanami

Black Flash user: Kento Nanami(C)Gege Akutami/Shueisha

Kento Nanami is also an experienced Black Flash and, as mentioned below, holds the record for consecutive black flashes.

Speaking of Nanami, the technique “Ratio technique” forces the 7:3 of the line to be a weak point.

This is a very powerful attack, but if he also activates the black flash, he will exorcise most of the cursed spirits instantly.


Black Flash user: Mahito(C)Gege Akutami/Shueisha

In the 127th chapter of the 15th volume of the manga, Mahito also unleashed the Black Flash, and he continued to do so in his fights with Yuji Itadori and Aoi Todo.

As mentioned earlier, once you successfully perform the Black Flash, you can enter the “zone” and perform a series of Black Flash.

So on this occasion, Yuji and Aoi Todo also performed Black Flash many times in response to Mahito’s Black Flash.

Yuta Okkotsu

Black Flash user: Yuta Okkotsu(C)Gege Akutami/Shueisha

In fact, Yuta Okkotsu also has experience in using the Black Flash.

The first time Yuta Okkotsu activated the Black Flash was one year before the main story, when Suguru Geto caused the “Night Parade of a hundered Demons“, and he used it in a battle with Geto.

In the manga version, it looks like just a punch with cursed energy, but in the movie version, this blow of Yuta Okkotsu is depicted as the Black Flash.

And Yuta Okkotsu at that time probably had no knowledge of the black flash, and was unaware that it was activated.

The record for consecutive black flashes is 4 (Kento Nanami and Yuji Itadori)

The record for consecutive black flashes is 4 (Kento Nanami and Yuji Itadori)(C)Gege Akutami/Shueisha

As mentioned above, it is impossible to activate Black Flash intentionally, but once you have one, you can sometimes get a series of them.

The previous record holder for the most consecutive Black Flash was Kento Nanami, with four in a row.

It was also a tie for the most, as Yuji Itadori also made four in a row in the battle with Hanami.


In addition to the fact that the Black Flash itself is a terribly powerful attack, in the case of Kento Nanami, all of his attacks are critical hits due to the “Ratio technique“.

Who has Kento Nanami performed 4 Black Flash on?

In the official fan book of the jujutsu kaisen, it was told what kind of the opponent that Kento Nanami, who has a high attack power, shot four Black Flashes.

The opponents are the 1st grade cursed spirits that appeared in the “Night Parade of a hundered Demons” that Geto caused in Jujutsu Kaisen Volume 0.

Kento Nanami was sent to Kyoto during the “Night Parade of a hundered Demons“, and it seems that he exorcised a lot of 1st grade cursed spirits during that time.

Who can use Black Flash or has the potential to use it?

In addition to the characters introduced above, there are also some other characters who may have experienced Black Flash and who may be able to use it in the future.

  • Yuki Tsukumo
  • Suguru Geto
  • Mei Mei

It is known that the use of Black Flash brings you closer to the “core of the cursed energy“, and it is likely that all special grade sorcerers have used it.

And Mei Mei is a 1st grade sorceress though, from the strength with which she exorcised the special grade cursed spirits “Smallpox deity” in the Shibuya Incident, she is probably an experienced Black Flash.


<Characters that may be triggered in the future>
Megumi Fushiguro

A character who is likely to be activated in the future is Megumi Fushiguro.

His classmates, Yuji Itadori and Nobara Kugisaki, have both had the Black Flash activated, and Satoru Gojo has said that Megumi is on par with Yuji in terms of ability and potential, so there is a possibility that he will be activated in the future.

[Jujutsu Kaisen] The ‘Black Flash’ also appears in episode 19 of the anime!

The power and impact of the Black Flash is unparalleled, even in the original manga.

It also appears in the anime version in episode 19, “Black Flash”. It’s a very powerful and impactful piece of work that has been recreated in high quality animation.

Conclusion of “[Jujutsu Kaisen] What is Black Flash? Details explained as record, the power, and activation conditions!”

In this article, I have explained the power of Black Flash, the conditions for its activation, the origin of its name, the benefits of activating it, and the anime version of it.

It’s an interesting technique that’s extremely difficult to activate, but once you’ve landed one, you’re more likely to use it repeatedly.

It’s likely that this will continue to be a special move for the close-combat mainstay Yuji Itadori, and I’m looking forward to getting closer to the “core of the cursed energy” each time.

You can also read more about Jutsu Kaisen here.

[Jujutsu Kaisen] All characters names and faces list!

[Jujutsu Kaisen] All cursed technique and spell list!

[Jujutsu Kaisen] Domain expansions list! The sorcerers, the effects, the names are shown!

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