Lena Amatsu

**Lena Amatsu** (天松レナ, *Amatsu Rena*) is the 28-year-old CEO of ZAIA Enterprise Japan who transforms into **Kamen Rider Thouser**.

## History

### Backstory

Lena grew up in a strict household, where she was told she was never good enough. She had to get a 100% in everything in school, and even that, according to her father, was not good enough. She was considered a genius prodigy from a young age and graduated from Starford University at the age of 18, with a Master's Degree in Business Administration. Lena joined ZAIA Enterprise at the age of 20 and was appointed CEO of its Japanese branch at 25.

Lena met Shilo one day while at a business meeting, and Shilo was the CEO of GENM. The two found they had a lot in common and shared interests. The two became business partners and even dated for a few years, before they broke up. However, they remain very good friends to this day.

Lena is indirectly responsible for what happened in Daybreak Town, and she’s behind Kazuhiro becoming Naki, and she manipulates him when she has to due to a chip that she had implanted into him.

Lena also runs AIMS, but this is more behind the scenes, and is something she very recently managed to tighten her hold over. When Kaede was killed, Lena had AIMS take the girl and implanted a chip into her, like she had done to Kazuhiro. And when Kaede brings a badly injured Tadashi to her, Lena has her medical team save him, and also has a chip implanted into him as well. She has control over these three if and when she needs it, and this keeps her in the loop on things. She manipulates a lot of things behind the scenes...but it won’t be too long before she’s in the spotlight.

## Personality

Lena is a cunning and ruthless capitalist, believing that she and her company will usher humanity towards supremacy over ​artificial intelligence​. Holding both herself and her company in high regard, she will do whatever she deems necessary to destroy the public image of Humagears. She even created Ark, which would become a force of malicious nature.

Lena has a large amount of pride in being able to orchestrate events that lead to her successes. Referring to her underlings as "tools", Lena has a very naïve belief that her control over them is absolute and flawless. She feels threatened whenever they question her decisions and moralities. Lena is absolutely shocked when unforeseen events result in her plans being foiled. If/When this happens, she will snap and lose her composure, refusing help and violently pushing away those who offer it.

Despite knowing how to hold herself very well in a fight, Lena is not above resorting to using underhanded, if not downright illegal methods to secure a victory, such as encouraging violence, theft, and sabotage. However, most of the time, she will try to keep a sportsmanlike attitude about herself.

## Kamen Rider Thouser

**Kamen Rider Thouser**
"*Perfectrise! When the five horns cross, the golden soldier THOUSER is born. Presented by ZAIA.*"

―Transformation announcement

**Rider Statistics**

* **Rider Height**: 204.2 cm
* **Rider Weight**: 99.1 kg

**Ability Parameters**

* **Punching Power**: 42.4 t
* **Kicking Power**: 86.5 t
* **Maximum Jump Height**: 58.1 m
* **Maximum Running Speed**: 100 m per 1.8 seconds

Thouser's primary form is accessed by using the Amazing Caucasus Progrisekey and the Awaking Arsino Zetsumerisekey together in the ZAIA Thousandriver.

Kamen Rider Thouser is composed of the following parts:

* **Thousand Head** (サウザンドヘッド, *Sauzando Heddo*) - The helmet.
	+ **Awaking Lancer** (アウェイキングランサー, *Au~eikingu Ransā*) - The two silver horns, formed from the Horns of the Awaking Arsino Zetsumerisekey's Lost Model. They are made of **Snow Vigor** (スノーヴィガー, *Sunō Vu~igā*), a new type of metal alloy. They are extremely sharp, allowing them to be used as cutting and piercing weapons. A built-in phased array radar can search the area circumference without rotating the head. It reproduces the abilities of an Arsinoitherium to enhance the wearer's combat abilities.
	+ **Amazing Trident** (アメイジングトライデント, *Ameijingu Toraidento*) - The three black horns, formed from the Horns of the Amazing Caucasus Progrisekey's Rider Model. They are made out of a carbide steel known as **ZIA-1000**, and are used to throw enemies and control enemy braking. It has a built-in hearing device that collects sound from a three-dimensional area from the horns, enhancing hearing ability. It reproduces the abilities of a caucasus beetle to enhance the wearer's combat abilities.
	+ **Thousand Signal** (サウザンドシグナル, *Sauzando Shigunaru*) - The base where the five horns meet. It learns enemy behaviour, makes tens and thousands of behavioural predictions and derives an optimal solution within 0.001 seconds which is then presented to the wearer.
	+ **Thousand Eye** (サウザンドアイ, *Sauzando Ai*) - The purple eyes. In addition to possessing a dynamic visual acuity that is ten times stronger than humans an a 200° omnidirectional viewing angle, it can switch between modes such as shading and night vision to ensure visibility in all situations. Additionally, it can display all kinds of information and has so many functions that it can be called clairvoyance.
	+ **Thousand Crusher** (サウザンドクラッシャー, *Sauzando Kurasshā*) - Thouser's faceplate, which has the Awaking Lancer and Amazing Trident horns equipped to increase the combat capabilities of Thouser's head. It is equipped with the Thousand Eye, protects the face with robust armor and extends the wearer's abilities.
* **Thousand Breast** (サウザンドブレスト, *Sauzando Buresuto*) - The chest. It is composite armor that combines the new metal alloy **Snow Vigor**, which has a Knoop hardness of 10,000, and **ZIA-1000**. It also has the characteristics of a high-performance sloped armor.
* **Thousand Shoulder** (サウザンドショルダー, *Sauzando Shorudā*) - The shoulders. It is a heavy armor made out of Snow Vigor, and is composed of complex surfaces, making it a sloped armor with excellent bouncing performance (to repel away weapons). In addition, it is equipped with a function that follows the movement of the arm and actively follows the areas that require the most protection during that situation. It reproduces the abilities of an Arsinoitherium to enhance the wearer's combat abilities.
* **Infrast Tecter** (インフラストテクター, *Infurasuto Tekutā*) - The bodysuit. By conducting thorough research on Kamen Rider Zero-One's **Rise Architecter** bodysuit, it was possible to greatly exceed its performance. In addition to a human enhancement system which utilises electromagnetic induction, it is possible to adjust the flow rate of each block of the liquid armor **n-NA** (「n-NA」) filled inside, and to perform power assist by functioning as a kind of artificial muscle. Additionally, durability has been greatly improved thanks to the application of **ZAIA Golden Coat** (ザイアゴールデンコート, *ZAIA Gōruden Kōto*), which can even block out cosmic rays. Additionally, its scalability as the basic equipment of **Concept Thouser** (コンセプトサウザー, *Konseputo Sauzā*) is very high, and exerts it maximum strength by flexibly responding to resources such as the Progrisekey and the Zetsumerize Key.
* **Tect Arm** (テクトアーム, *Tekuto Āmu*) - The arms. The **Infras Tecter** bodysuit, which exerts 1000x the power of humans, draws superhuman power from the wearer and can produce up to 10 times the arm strength of Kamen Rider Zero One Rising Hopper.
* **Tect Grab** (テクトグラブ, *Tekuto Gurabu*) - The hands. As part of the Infrast Tecter bodysuit, information on any touched object is sent to the Thousand Eyes, and various information can be obtained. In addition, during combat, **n-NA** filled within is pressurised and densified, thereby greatly increasing Thouser's punching power.
* **Tect Leg** (テクトレッグ, *Tekuto Reggu*) - The legs. The **Infras Tecter** bodysuit, which exerts 1000x the power of humans, draws superhuman power from the wearer and can produce up to 10 times the leg strength of Kamen Rider Zero One Rising Hopper. The thigh armor is equipped with a load-bearing device dubbed **Amazing Loader** (Ameijingu Rōdā), allowing Thouser to gain approximately 1000 times of her normal leg strength without faltering under weight. It protects the thighs and reproduces the abilities of a caucasus beetle to enhance the wearer's combat abilities.
* **Thousand Greave** (サウザンドグリーブ, *Sauzando Gurību*) - The shin armor. It is equipped with **Awaking Charger** (アウェイキングチャージャー, *Au~eikingu Chājā*), a leg-strengthening device that demonstrates strong leg strength during kicks and dashes. It reproduces the abilities of an Arsinoitherium to enhance the wearer's combat abilities.
* **Thousand Boots** (サウザンドブーツ, *Sauzando Būtsu*) - The feet. It is made out of **Snow Vigor**, which has a Knoop hardness of 10,000. The Snow Vigor has been upgraded, improving the Thousand Boots' defensive and destructive prowess.

## Equipment

### Devices

* ZAIA Thousandriver - Thouser's transformation device.
* Progrisekeys - Transformation trinkets
* Zetsumerisekeys - Transformation trinkets
* Progrise Holder - Carrying straps for Progrisekeys

### Weapons

* Thousand Jacker - Thouser's personal weapon
* Pistol - Used to shoot Hiroyuki