Atsuki Hiden

**Atsuki Hiden** (あつきひでん *Hiden Atsuki*) is the main protagonist of the *Zero-One* plotline. He is the 22-year-old CEO of Hiden Intelligence. Aided by his Humagear secretary, Izu, he fights as both **Kamen Rider Zero-One** (仮面ライダーゼロワン *Kamen Raidā Zerowan*) against the Ark to ensure a happy future for both humankind and Humagear.

## History

### Background

Atsuki Hiden was born into a life of luxury, his father was the CEO and President of Hiden Industries, but his mother died after giving birth to Atsuki, so he was mostly raised by his grandfather due to his father’s absence in running Hiden Industries. Atsuki’s life took a small downward spiral when his grandfather passed away, without someone by his side without his father, Atsuki slowly grew afraid of being abandoned, and being alone, this became evident to his father, so he’d secretly break one of his own rules and create a Humagear, matching the appearance of Atsuki’s grandfather to appeal to Atsuki while he was gone.

However, Atsuki’s life did not get any better, the death of his grandfather was merely the beginning, as him and the Humagear with the image of his grandfather went into town, the town suddenly began to explode, while Atsuki was able to survive the incident, but he was shielded by his Humagear grandfather, who died in the incident known as the Daybreak incident. As Atsuki grew up, he’d stick by his father's side due to his mild fear of being abandoned and alone, but the trauma in his life didn’t end there, as Atsuki grew into an adult, he witnessed his father being assassinated in public. The assassination of his father didn’t sink Atsuki further into depression, it actually sharpened his resolve, wanting to find the person who killed his father, and carry on his family’s legacy, Atsuki became the CEO and President of Hiden Industries, becoming Kamen Rider Zero-One in the process.

## Personality

Atsuki has crafted himself a fake persona to mask his true feelings from others that aren’t close to him or his family. Atsuki makes himself seem more like a typical spoiled philanthropist, or cocky president of a company, this is to mostly keep himself at a distance from anyone that isn’t close to him, or anyone that he doesn’t trust. Atsuki at his core is a person that genuinely cares about humans and Humagears alike, and will do anything to make sure the two can coexist with each other. However, a part Atsuki is still torn over the loss of his parents, but doesn’t let it tear him up, but lets it motivate him to achieve his own dreams, and the dreams of others. Atsuki keeps this solely to himself, but his is absolutely terrified of being abandoned and alone, while he’s able to work by himself, it’s more like he’s terrified of having nobody at his side when he’s reached his darkest moment, and it may cause him to do things he would never do.

## Forms

* Zero-One Driver

* Standard

* Rising Hopper

**Rising Hopper**

"*Progrise! To-bia ga rise! Rising Hopper! A jump to the sky turns to a Rider Kick.*"

―Transformation announcement

Rider Statistics
* **Rider Height**: 196.5 cm
* **Rider Weight**: 87.0 kg

Ability Parameters
* **Punching Power**: 8.4 t
* **Kicking Power**: 49.0 t
* **Maximum Jump Height**: 60.1 m
* **Maximum Running Speed**: 100 m per 4.1 seconds

**Rising Hopper** (ライジングホッパー *Raijingu Hoppā*) is Zero-One's grasshopper-based primary form accessed by using the Rising Hopper Progrisekey in the Hiden Zero-One Driver.

While it serves at Zero-One's balanced default form, Rising Hopper excels at jump height and kicking power, outclassing all of his other main forms as well as other Riders in these areas due to using grasshopper data.

Rising Hopper consists of the following parts:

* **Hopper Head** (ホッパーヘッド *Hoppā Heddo*): The head.
	+ **Hopper Mask** (ホッパーマスク *Hoppā Masuku*): Rising Hopper's faceplate. It protects the face and reproduces the capabilities of grasshoppers to extend the wearer's capabilities.
	+ **Zero-One Signal** (ゼロワンシグナル *Zerowan Shigunaru*): The Zero-One system's control device. Located between the eyes. It has a role of controlling the signaling system for adapting to various Progrisekeys, matching and information transmission loss with the wearer, adjustment to close the ability extension to the theoretical value by checking such as defects is performed.
	+ **Hopper Antenna** (ホッパーアンテナ *Hoppā Antena*): The antenna. By adopting an active method for performing directional control by changing the phase and wavelength, it is possible to detect even the smell by introducing the state-of-the-art olfactory element.
	+ **Hopper Eyes** (ホッパーアイ *Hoppā Ai*): The compound eyes. Different image sensors of the method are assembled in compound eye shapes, it is possible to extract a variety of information, including thermography and X-ray imaging by combining with image processing. In addition, it is also possible to view high-altitude observation information from the communication satellite **Zea** (ゼア, ***Zea***).
* **Rise Architecter** (ライズアーキテクター *Raizu Ākitekutā*): The black undersuit. It is a human strengthening system that uses electromagnetic induction to activate the wearer's physical abilities and brings out superhuman strength. The material is a woven fabric made of a special fiber **Hiden Hexa Fiber** (ヒデンヘキサファイバー *Hiden Hekisa Faibā*) with excellent toughness and soft metal fiber **Hiden Amorphous Line** (ヒデンアモルファスライン *Hiden Amorufasu Rain*), and it is very thin and supple though it is woven together with information cables. Inside, the liquid armor **n-NA** ((「n-NA」), ***n-NA***), a kind of non-Newtonian fluid with excellent bulletproof and shock absorption, is enclosed, maintaining flexibility and maintaining the protection of the whole body. In addition, as basic equipment of the Zero-One system, it is possible to develop and evolve by adding various abilities based on the data of the Progrisekey.
	+ **Architecter Head** (アーキテクターヘッド *Ākitekutā Heddo*): The Rise Architecter's helmet parts; the black parts of the helmet. The human strengthening system using electromagnetic induction activates the wearer's physical abilities and brings out superhuman strength. Just like the Rise Architecter, it is made up of Hiden Hexa Fiber, Hiden Amorphous Line and contains n-NA within it.
	+ **Architecter Shoulder** (アーキテクターショルダー *Ākitekutā Shorudā*): The shoulders, made of **Hiden Alloy** (ヒデンアロイ *Hiden Aroi*), with a Knoop hardness of 8200, the shape with excellent aerodynamics disperses the kinetic energy of impacts and shells, and by deflecting it, it increases the defense performance and reduces the air resistance on itself Improve even motility.
	+ **Hiden Linker** (ヒデンリンカー *Hiden Rinkā*): The collar armor piece, made of soft metal **Hiden Amorphous** (ヒデンアモルファス *Hiden Amorufasu*) armor by neuronal connection of the wearer's body using a pseudo-impulse, to provide a reflection speed to correspond to the calculation speed obtained by the data link with the communication satellite Zea.
	+ **Architecter Arms** (アーキテクターアーム *Ākitekutā Āmu*): The arms. It allows the Rise Architecter to pull out superhuman feat from the wearer and can lift up to 3.2 tons of objects.
	+ **Architecter Grab** (アーキテクターグラブ *Ākitekutā Gurabu*): The hands. It is possible to extend the sensitivity of the sense of touch by increasing the gripping power by drawing out superhuman force from the wearer.
* **Hopper Breast** (ホッパーブレスト *Hoppā Buresuto*): The chest plate. It comes with a built-in the respiratory and hearing device **Rising Lung** (ライジングラング *Raijingu Rangu*) and the ability of the wearer is extended by reproducing the function of the grasshopper as well as protecting the chest and abdomen.
* **Hopper Legs** (ホッパーレッグ *Hoppā Reggu*): The legs. It is equipped with a jumping device **Rising Jumper** (ライジングジャンパー *Raijingu Janpā*), allowing 60.1m of jumping in vertical jumps. This protects the thigh and reproduces the function of the grasshopper to extend the wearer's ability.
* **Hopper Greaves** (ホッパーグリーブ *Hoppā Gurību*): The shin guards. It is equipped with a dampening device dubbed **Rising Absorber** (ライジングアブソーバー *Raijingu Abusōbā*) which absorbs the shocks created by propelling one of the ground and landing, preventing the user's legs from self-destructing. It protects the shins and reproduces the function of the grasshopper to extend the capabilities of the wearer.
* **Hopper Boots** (ホッパーブーツ *Hoppā Būtsu*): The feet. It is made of Hiden Alloy, with a Knoop hardness of 8200, increasing the destructiveness of kicks and defensive power.

	+ **Rising Impact** (ライジングインパクト *Raijingu Inpakuto*): Zero-One first launches the enemy into the air with a upward kick that creates an energy projection of a grasshopper leg. He then jumps into the air and kicks the enemy downward. As the enemy falls toward the ground Zero-One performs a final flying kick with an energy construct of a robotic grasshopper extending from his foot and breaks through the target's body.
* Attache Calibur finishers:
	+ **Kaban Strash** (カバンストラッシュ *Kaban Sutorasshu*): Zero-One augments the Kaban Strash with the power of the inserted Progrisekey.
		- Rising Hopper - **Rising Kaban Strash** (ライジングカバンストラッシュ *Raijingu Kaban Sutorasshu*): Yellow energy is emitted from the Attache Calibur's blade before Zero-One delivers a downward slash followed by a horizontal slash.
		- Biting Shark - **Biting Kaban Strash** (バイティングカバンストラッシュ *Baitingu Kaban Sutorasshu*): Beams of teal energy and a series of energy shark fins are projected before Zero-One slashes the enemy.
		- Rocking Hopper - **Rocking Kaban Strash** (ロッキングカバンストラッシュ *Rokkingu Kaban Sutorasshu*): Zero-One charges the Attache Calibur with green and red energy before running up a large enemy, slashing them as he moves. He then leaps high into the air and performs a downward stab as he falls, causing a burst of green energy when he strikes the opponent.
	+ **Kaban Dynamic** (カバンダイナミック *Kaban Dainamikku*): By switching the Attache Calibur back to Attache Mode, charging it, changing it back to Blade Mode and inserting a Progrisekey, Zero-One can perform a Kaban Dynamic finisher with the power of the inserted Progrisekey.
		- MetalCluster Hopper - **Metal Rising Kaban Dynamic** (メタルライジングカバンダイナミック *Metaru Raijingu Kaban Dainamikku*): Zero-One delivers two slashes to separate opponents, with each leaving a trail of combined Cluster Cells.

## Equipment

### Devices

* Hiden Zero-One Driver - Transformation device for Zero-One
* Progrisekeys - Transformation trinkets
* Progrise Holder - Carrying straps for Progrisekeys

### Weapons

* Attache Calibur
* Attache Arrow