Cursed Energy

**Cursed Energy** (呪 (じゅ)力 (りょく), *Juryoku*?) is a power source aligned with negative emotions used by sorcerers and cursed spirits to fuel their jujutsu.

## Description

Negative emotions such as grief and anger are the foundation of cursed energy. These emotions exist to some degree within most humans and as a result, the vast majority of human beings possess cursed energy. If this amount is higher than a certain degree, it grants the person the ability to see cursed spirits. These individuals are known as jujutsu sorcerers and they are very rare among the human race. Cursed energy leaks from the human body, accumulates, and ferments over time until a cursed spirit manifests. This is only the case with non-sorcerers, as sorcerers are trained to control and channel their cursed energy into jujutsu.

Cursed energy is the primary power source for any sorcerer or cursed spirit. Cursed tools, cursed objects, and cursed corpses all contain cursed energy as well. It is ordinarily used to fuel cursed techniques, reinforce the body, or activate talismans, but cursed energy has various uses. The properties of cursed energy vary from person to person and its connection to the human brain is shrouded in mystery. In the anime, most cursed energy is blue in color but there are several exceptions.

## Cursed Energy Detection

**Cursed Energy Perception** (呪 (じゅ)力 (りょく)感 (かん)知 (ち), *Juryoku Kanchi*?) refers to the ability of humans with above-average levels of cursed energy to sense, and especially see, curses and jujutsu. The minimum requirement for a human to be considered a sorcerer is the ability to see curses. In extreme cases, humans will gain the ability to see curses when their life is in danger.

The strength of a sorcerer or curse is generally assessed by their levels of cursed energy. Strong cursed energy can result in physical pressure that instills fear into those who sense it as a method of intimidation. The same concept can be applied to a jujutsu battle where reading an opponent's cursed energy is an effective way to predict their movements. Prediction based on cursed energy can backfire when faced with a fighter in cases where their physical prowess outclasses their cursed energy. Physically fast and strong fighters with low cursed energy are often unpredictable to enemy sorcerers.

Sorcerers can also notice small, vague differences in cursed energy in addition to its overall amount. Certain people may have different traits to their Cursed Energy such as the Inverted Spear of Heaven possesses foreign cursed energy that can cancel out jujutsu. Other traits such as volume, size, sharpness or perhaps even heat may become apparent as one hones their senses.

Observing how cursed energy fluctuates as someone fights is an effective way of judging someone's overall cursed energy. For example, a fighter may be capable of observing the shifts in cursed energy output when they're attacked or when another is defending against an attack.

Using jujutsu leaves **Residuals** (残 (ざん)穢 (え), *Zan'e*?) of cursed energy behind. Residuals leave spectral footprints that can be used to track the user. Someone can even be identified by the residuals from their jujutsu. Expert sorcerers can be trained to cover up their residuals. The ability to detect cursed energy and understand its flow can be honed, but many cursed spirits are capable of hiding their presence the same way a sorcerer does.

## Cursed Energy Manipulation

### Controlling Cursed Energy

**Cursed Energy Manipulation** (呪 (じゅ)力 (りょく)操 (そう)作 (さ), *Juryoku Sōsa*?) — the ability to control the flow of one's cursed energy and channel it to carry out certain functions — is the foundation for all jujutsu and the first step towards becoming a jujutsu sorcerer. There is a world of difference between being able to sense jujutsu and being able to use it. One may be able to sense the pressure of cursed energy surrounding an area, but was not able to utilize it until trained properly.

Control over cursed energy requires innate skill and vigorous training. In order for a beginner to learn how to control their cursed energy they can go through various types of training with a constant pace and rigorous aspects, unless they were blessed with incredible natural talent.

Some may compare cursed energy to electricity: it's volatile in nature and difficult to use in its rawest form. While raw cursed energy can be used for its blunt force, it's best used by sorcerers to power their techniques in the same way electricity is best used to fuel electronics. In this case, cursed energy is flowed into a technique to activate a sorcerer's unique abilities. However, cursed energy does not flow on its own.

Proper control over one's emotions is key to channeling cursed energy and every jujutsu sorcerer is trained to do so. This makes it so sorcerers don't waste their power supply even while they're overcome with emotion. This results in sorcerers leaking much less cursed energy than the average human. So much so, that if every human were a sorcerer, curses would cease to spawn. There are other differences in how sorcerers and non-sorcerers use cursed energy due to their profession, but the real reason lies in how it flows. While cursed energy leaks outward from non-sorcerers, it flows heavily within sorcerers which keeps it contained.

Most sorcerers have to make cursed energy flow, so most instinctively believe it starts from the negative feelings in their stomach and flows through the rest of the body. However, thinking of one's body as different sections is what delays the flow of their energy. In order to understand this cycle, one must realize that they exist in the world with their entire mind, body, and soul as one. Aoi Todo helped Yuji stop taking this maxim for granted, greatly accelerating his progression as a sorcerer.

The flow of an elite jujutsu sorcerer is difficult to read because they have greater accuracy in controlling cursed energy. Their cursed energy is evenly distributed across their body, making their attack hard to predict until the very moment it's executed.

### Applying Cursed Energy

Applying cursed energy to physical attacks can be as effective as a cursed technique when it comes to gifted combatants who specialize in hand-to-hand combat. Some can fight on par with that of a grade 1 sorcerer without a technique due to seamless union of cursed manipulation and physical prowess. With even greater control and application at the highest level, one could be able to successfully overpower multiple special grade curses using only cursed energy manipulation.

The amount of cursed energy *released* by an individual is referred to as their potential **Cursed Energy Output** (呪 (じゅ)力 (りょく)出 (しゅつ)力 (りょく), *Juryoku Shutsuryoku*?). This applies to both how it's used offensively and defensively. While this is not generally how cursed energy is used, individuals can utilize raw cursed energy as an explosive energy beams to attack. Finger Bearers can launch their energy as a projectile and erect cursed energy barriers.

Defensively, users can coat their skin in cursed energy to harden their body and increase their ability to block incoming curse related attacks. The same application can be used offensively, imbuing physical attacks with cursed energy to increase their destructive power to superhuman levels.

Conventional weapons can also be infused with cursed energy to increase their strength. Imbuing too much cursed energy at one time to a normal weapon can compromise its integrity and destroy it, so a sorcerer must only infuse small amounts of energy at a time. Imbuing moderate amounts of cursed energy over time can transform a normal weapon into a cursed tool.

### Special Traits

There are rare cases where cursed energy carries a special property unique to its user. When applied to their fighting techniques, it can grant them a special texture or effect that gives them an advantage in battle. These special traits cannot be defended by simple reinforcement techniques. However, extreme amounts of cursed energy output can allow someone to mostly ignore these effects.

### Black Flash

Main Article: *Black Flash*
Black Flash is a phenomenon of jujutsu where a spatial distortion is born as a result of the application of cursed energy within 0.000001 seconds of a physical hit. The distortion causes cursed energy to flash black, increasing the destructive power of the impact to the power of 2.5. There is no sorcerer who can use it at will, but those who have unleashed Black Flash gain an advanced understanding of cursed energy far beyond those who have not.

### Positive Energy

Main Article: *Reverse Cursed Technique*
Cursed energy is born from negativity, so human flesh can't be regenerated from it even if it can be reinforced. By multiplying negative energy together, positive energy can be created. This can only be done using reverse cursed technique, which requires extremely complex and sophisticated cursed energy control.

## Cursed Restrictions

Main Articles: *Binding Vow* & *Heavenly Restriction*
To gain something, one must offer something in return. This is a concept that affects the world beyond jujutsu. Alongside emotion, risk is a key factor that can affect cursed energy. The greater the risk to the user, the more their cursed energy will react. It is believed that the fastest way to raise one's level as a sorcerer is a Binding Vow with their life as the trade-off. Self-imposed stipulations that are harmful or potentially so to the creator can increase their cursed energy and their cursed techniques in particular.

For example, the rules of a cursed technique establish the general parameters of an ability, and activation requirements can be set to determine the circumstances in which said ability can be used. By willingly divulging these rules, the user incurs more risk to themselves. Due to the negative emotions induced by potential repercussions, cursed energy grows in response and makes the cursed technique more effective.

This concept also applies to why normal humans can suddenly see curses in a life or death situation. Human senses are heightened when their life is in danger because of the instinctive fight or flight reflex. The same concept amplifies someone's ability to sense curses. A normal human's cursed energy will rise if their life is in danger of being cursed, allowing them to perceive it.

A jujutsu practitioner can increase the overall power of their individual cursed techniques by self-imposing further restrictions that force more conditions on the user. Applying conditions to abilities to increase their effectiveness goes for barrier techniques as well as innate techniques. By going against the fundamentals of casting barrier techniques and staying outside their own curtain, the caster increases the risk of being noticed and increases the barrier's strength. The more obvious the caster's location, the stronger the barrier.

There are a few cases of Heavenly Restrictions that reduced someone's cursed energy to low levels with increased physical attributes as the trade off. For example, a Heavenly Restriction that has only appeared and been recorded once in the world that eliminates cursed energy from his body completely in return for unparalleled superhuman strength, speed, and senses. The opposite, trading physical health for cursed energy is also true.

## References

*Jujutsu Kaisen* Manga: Chapter 77 (p. 6).
*Jujutsu Kaisen* Manga: Chapter 0-3 (p. 26).
*Jujutsu Kaisen* Manga: Chapter 36 (p. 14).
*Jujutsu Kaisen* Manga: Chapter 71 (p. 18-19).
*Jujutsu Kaisen* Manga: Chapter 12 (p. 12-13).
*Jujutsu Kaisen* Manga: Chapter 12 (p. 13).
*Jujutsu Kaisen* Manga: Chapter 12 (p. 18-19).
*Jujutsu Kaisen* Manga: Chapter 77 (p. 8-9).
*Jujutsu Kaisen* Manga: Chapter 37 (p. 8-12).
*Jujutsu Kaisen* Manga: Chapter 140 (p. 17-18).
*Jujutsu Kaisen* Manga: Chapter 88 (p. 8).
*Jujutsu Kaisen* Manga: Chapter 85 (p. 13).
*Jujutsu Kaisen* Manga: Chapter 7 (p. 6-9).
*Jujutsu Kaisen* Manga: Chapter 51 (p. 8).
*Jujutsu Kaisen* Manga: Vol. 0 (p. 175).
*Jujutsu Kaisen* Manga: Vol. 5 (p. 130).
*Jujutsu Kaisen* Manga and Anime: Chapter 48 (p. 16-18) and Episode 19.
*Jujutsu Kaisen* Manga: Chapter 74 (p. 10-11).
*Jujutsu Kaisen* Manga: Chapter 102 (p. 18).
*Jujutsu Kaisen* Manga: Chapter 94 (p. 4-5).
*Jujutsu Kaisen* Manga: Chapter 77 (p. 7-8).