Zein

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 is the main antagonist of Kamen Rider Outsiders. It is an artificial intelligence that transforms into .
==History==
Zein is an artificial intelligence that assessed the "good intentions" of humanity and was suddenly born into the network. As Zein had a zero tolerance for malice, Gai Amatsu worried that Zein would come to conclude that humanity's extinction was required to eliminate malice and formed a reluctant alliance with the Ark to stop it. He would also attempt to persuade Kuroto Dan to help them as well. Unknown to Gai, Ark manipulated Gai for Kuroto to become Musou Gamer.
In light of Zein's presence, Foundation X initiated Project Outsiders, with the help from Ark's predictions to oppose Zein's autocracy. However, Zein swayed various heroic Riders and their associates to crackdown Foundation X's illegal activities. Later, Zein plans to reactivate Kamen Rider Chronicle to wipe out humanity, it successfully tricks Tsukuru Koboshi, the CEO of Genm Corp., into relaunching the game while mimicking Nico Saiba's voice.
===Hundred Crisis===
Kamen Rider Zein approached and introduces itself to Mimei after Kamen Rider Valvarad and Valvarad defeated her. Zein then uses the Super-1 Zein Card while Mimei transforms into Kamen Rider Glare to battle Zein. However, it easily defeats her with the Super Rider Moon Surface Kick. After Mimei disintegrates, Zein mocks her that she is too weak to be an Outsider and then walks away.
== Personality ==
Zein is an artificial intelligence with an mentality, living only by its own morality that stands out from the rest of the world, seeking to oppose all that is evil and create a utopia of permanent and everlasting peace. However, despite being viewed as a benevolent AI by its associates, in reality, it is anything but. Zein is a cruel, oppressive, ruthless, absolutist, sadistic, hypocritical, callous, amoral, and above all, a genocidal artificial intelligence with a growing God complex. Because of being bestowed with the powers of every heroic Kamen Rider, it believes itself to be morally superior to humans, and even the villains trying to oppose Zein. 
Zein proved itself to be no less malevolent than the Ark. Ironically, Zein was created to oppose the Ark and all the malice associated with it, but Zein's actions alone crosses too many lines that it's deemed a threat to the world if left unopposed. If the Ark wanted to destroy humanity for their capacity for evil, Zein can do the same, if anything, much worse, with itself defining its own twisted view of good and evil, of which is a slippery slope in and of itself to go on. Once Zein finally revealed its true colors to its followers, all of its narrative of benevolence and goodwill reveal the empty excuses of a hypocritical and sanctimonious tyrant while reveling at its supporters' despair for unintentionally dooming humanity to be subjugated by another rogue AI.
==Powers and Abilities== 
*Global Surveillance: Zein can place the entire world under constant and tight surveillance thanks to its mere presence around the Internet alone, to the point of placing villainous organizations like Foundation X and Smart Brain under intense scrutiny. This also raises a cause for alarm for people who are not engaged in any wrongdoing, including former villains like Desast. The Multi Compound Eye of the eponymous Rider's helmet acts as an omni-directional surveillance device that allows it to control satellites and security cameras. 
*World Merge: According to Horobi, in order to eradicate all malice, Zein unified the worlds of all Kamen Riders.
*Possession: Zein can possess a person through the Zein Driver, allowing him to gain a body. This works similar to Ark possession powers, but Zein possesses a human being.
*Voice Mimicry: Zein is capable of perfect imitation of the voice of a certain person, in this case Nico Saiba, using this to trick Genm Corp. into relaunching Kamen Rider Chronicle.
*Zein Card Imprisonment: After restarting Kamen Rider Chronicle, Zein implements a penalty on Ride-Players if they receive a Game Over. Instead of disappearing into data, the player is instead trapped in a Zein Card.
*Time Manipulation: Though not elaborated upon, Zein is able to stop and resume time within a certain area at will. First done while entering in the skirmish of Bronzedrive against Horobi, done again on their fight against Zero-Three briefly.
==Kamen Rider Zein==
Kamen Rider Zein
 
;Rider Statistics
* Rider Height: 209.9 cm
*Rider Weight: 90.3 kg
;Ability Parameters
*Punching Power: 51.2 t
*Kicking Power: 109.0 t
*Maximum Jump Height: 77.3 m
*Maximum Running Speed: 100 m per 0.5 sec.
Zein's primary form accessed by using the Kamen Rider Zein Progrisekey in the Zein Driver.
Zein possesses the ability to harness the powers of every Justice Rider by utilizing the Zein Cards, which enable him to execute the finishing attacks of the corresponding Rider. Other than finishing attacks, Zein is able to utilize the Zein Cards to temporarily use the abilities of the corresponding Rider or summon their weapons. It is important to note that these Cards are rendered unusable and shredded after usage.
Zein consists of the following parts:
* : The head. 
**: The antennas. The directivity can be changed according to the environment, and a vast amount of information of multiple types can be transmitted and received simultaneously, including communication with various electronic devices and radar functions. The maximum number of simultaneous connections with external devices is 10,000.
** : The head armor material. It is a high-density sintered material made by blending the rare metal with carbon, etc., and has a hardness comparable to that of diamond and high shock absorption.
**: The frontal armor. The generated by the thigh armor "Marble Cuisses" forms on the surface of the armor to repel physical attacks with repulsive force.
**: The special sensor. By collecting detailed information such as the target's actions, words and deeds, the artificial intelligence Zein will use the information to judge its goodness or badness.
**: The eyes. Real-time video data is collected from reconnaissance satellites, security cameras in the facility, and various AI-equipped devices by connecting to the network. This allows for simultaneous viewing of any location as its own view.
**: The mouthguard. Equipped with high-quality speakers, the difference between the transformer and the synthetic voice created by the artificial intelligence Zein has been successfully reduced to 0.09%. This also allows for cognitive warfare, such as bluffing when the transformer is seriously damaged or making it difficult to identify the transformer by voice changers.
*: The powered suit. A human enhancement system applies electromagnetic induction that activates the wearer's physical abilities and draws out superhuman strength. The information on the Zein Cards read and shredded by the Zein Driver is algorithmized through a special program, Kamen Rider Chronicle, to embody various Kamen Rider abilities and techniques.
* : The mantle. It has a built-in irradiation molding machine, , which outputs high-definition three-dimensional objects from the irradiated surface inside the mantle. This allows various weapons and items to instantly appear from the Zein Card information read by the Zein Driver.
*: The chest armor. Behind its extremely strong armor lies a determination to exterminate all malice, and it has the ability to progressively release its limiter as the target's evil quotient increases.
*: The arms. The power cable stretched across the Algorithmic Suit reinforces the transformer's movements and executes every maneuver with an accurate reproducibility rate of over 99.7%.
*: The hand and forearm armor. It has the ability to convert the energy supplied by the Zein Driver into destructive power, generating a powerful punching force. It is equipped with the weapon control auxiliary engine that simplifies the operation of various weapons, making it compatible with all Kamen Rider weapons.
*: The thigh armor. An energy barrier generator called the generates a Coulomb barrier by manipulating electrical charges and forms it on the surface of its entire body's armor. This allows the physical attack to be dispelled by repulsive force.
*: The legs. The power cable stretched across the Algorithmic Suit reinforces the transformer's movements and executes every maneuver with an accurate reproducibility rate of over 99.7%.
*: The shin armor. By using the barrier developed from the Marble Cuisses on the thighs, the repulsive force and attractive force applied to itself can be manipulated to can enhance their jumping ability and maneuver speed.
*: The foot armor. When the Special Move is activated, by expanding the anti-annihilation field, it is possible to convert the substance that becomes a resistance or obstacle into energy. This nullifies the physical defenses and at the same time improves the destructive power of the kick.
Using the Zein Cards, Zein has used the following abilities and weapons:
*Kamen Rider Super-1: 
**Abilities: Sincere Shaolin Fist
*Kamen Rider Faiz Blaster Form:
**Weapon(s): SB-555T Faiz Blaster
*Kamen Rider Blade King Form:
**Weapon(s): King Rouzer
*Kamen Rider Kabuto Hyper Form:
**Weapon(s): Perfect Zecter 
**Abilities: Clock Up, Hyper Clock Up
*Kamen Rider Ex-Aid Muteki Gamer:
**Abilities: Hyper Critical Sparking
*Kamen Rider Zero-Two:
**Abilities: Future prediction
*Kamen Rider Xross Saber:
**Weapon(s): Haouken Xross Saber
*Kamen Rider Ultimate Revice:
**Weapon(s): Revicelasher 
**Abilities: Summoning Kamen Rider Ultimate Vice 
*Kamen Rider GeatsIX:
**Weapon(s): Geats Buster QB9
This form has the following finishers: 
*Zein Driver finishers:
**: Zein inserts a Zein Card and pulls the lever of the Zein Driver before pressing the Kamen Rider Zein Progrisekey once, allowing him to utilize its abilities at the cost of ripping the card into pieces for a one-time use. 
***: Using Kamen Rider Super-1's , Zein holds his hand out and performs a pose before pressing the Kamen Rider Zein Progrisekey into the Zein Driver. He then knocks his opponent back before holding both his hands up in front of his head in the air, jumping and kicking his opponent, causing them to explode afterwards.
***: Using the SB-555T Faiz Blaster, Zein first inputs the code 1-0-3 Enter into the Faiz Blaster, converting it to Blaster Mode. He then activates Exceed Charge on the weapon, aiming it at his opponent before the weapon's muzzle flips open and begins to charge energy. Zein then pulls the trigger, firing a red energy beam that pierces through his opponent and causing them to explode.
**: Zein pressing the Kamen Rider Zein Progrisekey once, allowing him to perform following finishers:
***: Zein and Ultimate Vice both become coated in red and blue energies respectively, jumping into the air and performing a flying side-kick at their opponent before magnetically repelling each other, flying at their opponent and magnetically launches them into the air. They then fly into the air, repelling themselves off their enemy while creating a red electrical rope of energy along with a blue one, connected to the enemy as they begin to spin around the latter rapidly. They then perform a flying side-kick once again at their opponent and finish it with a side-kick to the back.
Appearances: Outsiders Episodes 3-4, Gotchard Episode 33, Outsiders Episodes 5-
==Equipment==
===Devices===
*Zein Driver - Transformation device
*Kamen Rider Zein Progrisekey - Transformation trinket
*Zein Cards - Secondary trinkets
===Weapons===
*SB-555T Faiz Blaster - Weapon summoned via the Faiz Blaster Form Zein Card
*King Rouzer - Weapon summoned via the Blade King Form Zein Card
*Perfect Zecter - Sword summoned via the Kabuto Hyper Form Zein Card
*Haouken Xross Saber - Sword summoned via the Xross Saber Zein Card
*Revicelasher - Sword summoned via the Ultimate Revi Zein Card
*Geats Buster QB9 - Sword summoned via the GeatsIX Zein Card
==Supporters==
Zein is followed by various individuals and organizations who supports its idea of eradication of evil.
*Horobi (defected)
* Genm Corp. 
**Nico Saiba (defected)
*BOARD
**Sakuya Tachibana
*Blue Bird
** George Karizaki
*Hiden Intelligence
**Aruto Hiden
*Yuto Sakurai
*Vice
==Possession==
Because the Zein AI has no physical body, it must possess a host through the Zein Driver. 
Yuto Sakurai (Zein Possessed).png|Yuto Sakurai
==Legend Rider Devices==
==Behind the Scenes==
===Portrayal===
Zein is voiced by , who previously voiced Snowman Imagin in Kamen Rider Den-O and Mummy Legendorga in Kamen Rider Kiva: King of the Castle in the Demon World.
===Etymology=== 
*Zein is likely an anagram for , meaning "good intentions".
* Zein is also derived from the first four letters of the English word, "zenith", meaning the highest point of a celestial body. Additionally, it refers to something at a highest point. Further reflecting its superiority over Ark and the ability to tap into the powers of all Legend Riders via Zein Cards.
*Its name is also derived from "Zain" (or "Zayin") in the Hebrew alphabet, which means "sword". But the Phoenician letter also appears to be named after other weapons. This is reflected with the Zein Driver (and the Zein Cards, by extension) being a weapon to smite evil.
*In a symbolic sense, Zein's feud with Ark is a reference to the phrase "from A to Z", given the first letter of their names. The letter Z is the final letter of the English alphabet symbolizing the end of something, referring to Zein seeking to bring to an end to all evil.
==Notes== 
*Zein is considered an antithesis of the Ark due to it assessing the positive aspects of humanity in contrast to Ark deeming humanity's negative aspects are sufficient to declare their extinction.
*Zein's binary coding in the background uses bright Greek Letters mixed with positive Japanese letters, contrasting the Ark's negative Japanese kanji.
==Appearances==
==Navigation==
Category:Mysterious Figures
Category:Outsiders Characters
Category:Antivillains
Category:Outsiders Riders
Category:Zero-One Riders