Perfect Zero

* Cursed Technique: Void Space
* Cursed Technique: Null Space
* Cursed Technique: Absolute Zero
* Cursed Technique Reversal: White Space
* Cursed Technique Reversal: Ground Zero
* Maximum: True Zero
* Domain Expansion: Zero Zone

**Perfect Zero** (無下限の零 (ムカゲンのレイ), *Mukagen no Rei*) is the Innate technique used by Kagerou Kizen, brings into reality the concept of "zero" and "nothingness" into reality, allowing the user to distort and manipulate space. Although, it is known the precise use and mastery of his Innate Technique was possible to the Todomeki (百々目鬼 (どどめき), *Dodomeki*), which was inherited through the Keraun Family.

## Description:

"**Nullify**" or "**Nullification**" is the base state of Perfect Zero and is essentially the power to stop and the most basic defensive system. it operates by defining every force, motion, action and other as a "duration-less" instant of time. However, in mathematics a number will never reach zero no matter how many times it is divided. Instead, there be infinitesimal small fractional units, it becomes immeasurable by any known means. The Perfect Zero technique brings the concept of "zero" into reality allowing the user to define things as "zero" or tend them infinitely close to zero.

Thus, the "barrier" created by "**Nullify**" is a result of the application of "zero" to the duration of an action or movement and bringing into reality Zeno's Arrow Paradox, and can be expanded or receded to protect against harmful substances or overpower opposing techniques by neutralizing them and stopping everything in time. The ability can only be deactivated by the user, or countered by Domain Expansion or Domain Amplifications. Although, certain Cursed Tools imbued with specialized curses can also disturb or dispel the "**Nullification**".

"**Instant Reaction**" is the initial manifested form of Perfect Zero, taking the form of extremely fast brain processing speed. This is due to the cursed energy being routed to the brain and through all the nerves, speeding up nerve transmission and nearing the time for the signals towards *zero*. This allowed Kagerou in the beginning of his career to perceive, process, analyze, understand and act upon information at an incredible rate. Although it came with a heavy physical burden potentially damaging his brain if overused. However, through the use of a passive regeneration cursed technique to keep his brain and nerves in a complete and healthy state. It would later become known as a passive "**Zero Inefficiency**". Although it is known that Hundred Eyes plays a large role in cursed energy efficiency, through the use of the *zero* concept, the user is able to apply it to "loss of energy" or "waste of energy", making the use of Cursed Techniques much more efficient as there is no "waste" or "loss" of energy due to inefficient use and manipulation of cursed energy.

## Techniques:

### Cursed Technique: Void Space

The **Cursed Technique: Void Space** (術式「虚間」 (じゅつしき「キョケン」), *Jutsushiki・Kyoken*), creates an extremely powerful gravitational point by tending the distance between a point in space and all matter around it towards zero through the inverse square law of the gravitational formula:

# F
G

m
1

∗

m
2

r
2

{\displaystyle F = G\frac{m\_1\*m\_2}{r^2}}

 Hence, as distance "r" tends infinitely close towards zero, it creates a powerful gravitational pull which bends the fabric of spacetime.
The second use of this technique is much more complicated as it requires the user to do properly identify spatial coordinates to teleport. If not done properly it can end up with teleportation at the wrong spot or teleporting only parts of the body, effectively dismembering oneself.

### Cursed Technique: Null Space

**Cursed Technique: Null Space** (術式「無間」 (じゅつしき「ムケン」), *Jutsushiki・Muken*), the technique sets the properties of fields in space and disturbances in the fabric of space as zero, effectively creating a zero-gravity and zero-magnetic field zone which will push anything out of the area. This technique thus nullifies any and all other disturbances in the fabric of space caused by opponents techniques or presence in the area as well as, ejecting them from the area. Although, it is possible to selectively chose what to eject from the field, thus Kagerou is capable of creating a protective forcefield around himself and others.
On another note, Null Space can take a variety of shapes, such as walls, cubes, spheres and others, to take on a variety of uses. Though it is used most often as a defensive technique, it can be used offensively as well. One offensive use is to separate an opponent in half by creating a place through them using Null Space, which will push both halves away from each other.

### Cursed Technique: Absolute Zero

**Cursed Technique: Absolute Zero** (術式「絶零」 (じゅつしき「ゼツレイ」), *Jutsushiki・Zetsurei*), this technique sets the temperature in kelvins in an area to *zero*, thus making an area where any and all energy is absent as there is no molecular movement in the slightest. Thus, all gasses compress into solids, liquids instantly freeze into solids and all matter within the effective range of the technique freezes into place. This is also Kagerou's favorite technique in his arsenal which earned him the alias Wicked Winter (犲冬 (サイトウ), *Saitō*).

## Advanced Techniques:

### Note

Kagerou's advanced techniques can only be utilized once his seal has been lifted to Special-Grade sorcerer, unlocking his most powerful and dangerous techniques. But both his Maximum Technique and Domain Expansion can *only* be used once his seal has been completely lifted with the *Seal Removal Command* allowing him to utilize the full extent of his Cursed Energy and Jujutsu Techniques

### Cursed Technique Reversal: White Space

**Cursed Technique Reversal: White Space** (術式 反転「皜間」 (じゅつしき はんてん「コウケン」), *Jutsushiki Hanten・Kōken*), is a cursed technique which reverses the effect of Void Space. The gravitational force of the technique is reversed, which creates an extremely powerful repulsive force. Thus, creating an extremely powerful explosion.

### Cursed Technique Reversal: Ground Zero

**Cursed Technique Reversal: Ground Zero** (術式 反転「地零」 (じゅつしき はんてん「チレイ」), *Jutsushiki Hanten・Chirei*), reverses the effects of Absolute Zero, thus the temperature in an area increases insanely to reach heats capable of instant sublimation of solids and evaporation of liquids into gasses as well as, ionizing gasses into plasma. Thus, the entire area becomes miniature star, burning and destroying everything within range.

### Maximum: True Zero

**Maximum: True Zero** (極ノ番「确零」 (ごくのばん「カクレイ」), *Gokunoban・Kakusei*), is the Maximum Technique of Perfect Zero, which applies the *Black Hole Information Paradox*, into reality. Thus, applying complete and permanent deletion of physical information, allowing to remove from reality anything and everything in the effective range of this technique.

### Domain Expansion

**Domain Expansion: Zero Zone** (領域展開「零境」 (りょういきてんかい「レイキョウ」), *Ryōiki Tenkai・Reikyō*), is Domain Expansion which differs from most, as it does not create a separate space within a barrier. Zero Zone creates an area or zone in which the user is capable of relentlessly attacking opponents with their cursed techniques and the ability to set or tend any value to *zero* within a 100m radius. This Domain takes the form of a void, as anyone within the area of the technique loses all their senses as the information entering their brains is zero and the information which they are able to process becomes zero. Effectively, paralyzing everyone within it.