Noah

Biodata

Feature	Details
Name	Noah Kaiba
Alias(es)	Heavenly King; Shinato 163 170
Gender	Male
Affiliation	Kaiba Corporation; New Domino City resistance
Occupation/Role	True founder of Kaiba Corporation in the Underworld; leader and security overseer of New Domino City 15 16
Status	Active 407
First Appearance	15

Background / History

Noah is introduced as the true founder of Kaiba Corporation in the Underworld, rather than Gozaburo Kaiba. From Kaiba Corporation’s fortified weapon factory, he oversees the rebel base’s operations and security, with even senior personnel such as Keith reporting directly to him. Despite appearing to be around ten years old, he carries himself with unusual elegance, authority, and political awareness. 15 16

He established the modernized Kaiba Corporation to oppose the Necromancer King and protect those around him. The corporation develops weapons, Machine-type cards, Duel Disks, and other technology by imitating the tools and abilities of supernatural beings. Noah describes the mass-produced Duel Disk as his proudest invention: it stores energy, materializes card power, and enables ordinary people to initiate Shadow Games against stronger enemies. 18 20 30

Noah conceals an Orichalcos necklace beneath his clothing. Its emerald glow changes his eye color and supports his ability to maintain the city and wield supernatural power. He later admits that he is dangerous, and his repeated use of Shadow Games leaves him visibly exhausted. 27 53 54

During Gozaburo Kaiba’s assault on the Magical Research Institute, Gozaburo calls Noah a “fake born from Orichalcos.” Noah’s depleted energy leaves him unable to properly connect with his Deck, forcing Yu Ming to intervene in their duel. 163 165

Later, Noah adopts the name Shinato and reveals that Doma manipulated events surrounding the Orichalcos incident. Believing he must return to the living world to avenge himself against Doma, he clashes with Yu Ming, who challenges him to a duel on behalf of the Underworld’s abandoned souls. 170 171

Appearance

Noah resembles a small, refined boy, but his appearance is repeatedly contrasted with the maturity and pressure he projects as a leader.

• Emerald-green hair and blue eyes; his eyes turn green when using Orichalcos power. 16 53
• Typically wears white clothing, including a form-fitting white shirt. 15 170
• Wears a steel wristband and a concealed Orichalcos necklace. 15 53
• Often accompanied by the crow spirit Yata-Garasu. 15 17

Personality

Noah is calm, articulate, and highly strategic. He tests Yu Ming through a duel rather than accepting Keith’s report at face value, and initially uses Yata-Garasu to assess Yu Ming’s emotions. When confronted, however, he apologizes and agrees to a more direct form of communication. 16 20

As New Domino City’s leader, Noah attempts to appear composed and flawless before his followers. He hides the fatigue caused by Shadow Games because he believes a leader cannot afford to show vulnerability. His concern for civilians and children is genuine, and he consistently frames his work as a mission to protect others. 27 54 407

His composure can fracture under personal pressure. The revelation of Doma’s involvement drives him toward revenge, causing him to reject the image of a “savior” and pursue a plan Yu Ming considers harmful to the wider Underworld. 170

Abilities & Skills

Leadership and Strategy

Noah leads a diverse resistance composed of humans, yokai, undead, demons, and Kaiba Corporation personnel.

• Organizes New Domino City’s defenses against the Necromancer King’s army. 29 30
• Identifies the KaibaCorp Big Five as likely traitors and forces a confrontation through a duel-based truth condition. 31
• Orders factory and city relocations after learning of the Necromancer King’s potential plan to create an artificial god. 90
• Supports allies’ decisions in battle, including Miruko’s choice to confront the Avatar of God. 155

Technology and Card Development

Noah directs Kaiba Corporation’s development of new weapons and cards suited to the Underworld.

• Develops Machine-type cards, including Geargia monsters and Geargia Army’s Defense Perimeter. 18
• Creates Duel Disks capable of storing energy, materializing card effects, and starting Shadow Games. 30
• Uses technology modeled after demons, undead, vampires, and other supernatural entities. 30
• Maintains strict factory defenses, including surveillance systems, mounted weapons, barriers, and robot-operated security. 15

Shadow Games and Orichalcos

Noah can invoke Shadow Game power and wield Orichalcos through his necklace.

• Emits black smoke that can seal off an area and isolate a confrontation. 22
• Uses Orichalcos power, marked by green light and emerald eyes. 53
• Relies on replacement Orichalcos necklaces after a fragment is spent or destroyed. 55
• Suffers severe fatigue from Shadow Games and energy depletion; this can disrupt his connection to his Deck. 27 163 165

Dueling

Noah is an experienced duelist with multiple documented Deck strategies.

• Uses a Machine/Geargia Deck built around layered defenses, equipment effects, and graveyard recovery. 17 18
• Uses the Creation of Heaven and Earth Deck, which combines myths, legends, disasters, and Spirit Monsters. 25 26
• Uses Hino-Kagu-Tsuchi to destroy opponents’ hands after inflicting battle damage. 25 26
• Uses Earthbound Ritual to recover and Summon Yata-Garasu for a finishing play. 26
• Later uses an Ogdoadic Deck powered by the resentment and sorrow of the land, summoning monsters such as Ogdoadic Deity - Ogdoabyss. 171

Equipment / Items

• Orichalcos necklace — Hidden beneath his collar; grants access to Orichalcos power and is replaceable with similar fragments. 53 55
• Duel Disk — A Kaiba Corporation design capable of materializing card power and initiating Shadow Games. 30
• Yata-Garasu — Crow spirit and recurring companion; assists Noah in reading others and can be used in duels. 16 26
• Crow-emblazoned coin — Used to determine turn order before his first duel with Yu Ming. 17

Relationships

• Yu Ming — Initially tests and recruits him for Kaiba Corporation; Yu Ming defeats Noah in their first duel, later becomes his tag-duel partner, confidant, and ultimately opponent when Noah pursues revenge. 16 20 26 170
• Keith Howard — An operative who reports to Noah after bringing Yu Ming to the Kaiba Corporation base. Noah treats him as an employee and pays him for completed work. 15 16
• Gozaburo Kaiba — A hostile paternal figure. Gozaburo denies Noah as “his Noah,” while Noah seeks to settle their conflict through a duel. 163
• KaibaCorp Big Five — Senior corporate figures Noah never trusted; he exposes their betrayal during the New Domino City conference. 29 31
• Miruko — A robot ally in whom Noah places considerable trust, supporting its decision to fight the Avatar of God. 155
• Yata-Garasu — Noah’s crow spirit companion, used both for emotional observation and as a duel card. 16 26

Story Role / Major Arcs

Recruitment of Yu Ming

Noah summons Yu Ming to Kaiba Corporation’s Underworld base, where he evaluates the newcomer through a duel. Although Yu Ming wins by dismantling Noah’s Machine defenses with Virus Cards and Dimension Fusion, Noah’s actual purpose is to assess and recruit him. He offers Yu Ming a place in New Domino City and promises to demonstrate that the current Kaiba Corporation exists to protect people. 16 19 20

Demon Attack and Tag Duel

When Dark Invader demands Red-Eyes from Noah, he refuses to yield and prepares to settle the matter through a duel. Noah and Yu Ming subsequently fight Dark Invader and Mr. Pitch-Black King in a Shadow Game, with Noah’s Spirit Monster strategy and Yata-Garasu securing victory. 21 25 26

The Mole Investigation

As the Necromancer King prepares an assault on New Domino City, Noah warns the resistance that an insider knows the city’s secrets and his location. He calls for unity, then directly challenges the Big Five when they are exposed as traitors. 29 30 31

Orichalcos Revelation

After investigating Yu Ming’s unusual condition and Virus Cards, Noah reveals his own hidden power: Orichalcos. He explains that this supernatural aid enabled him to build and sustain a modern city in the Underworld, while admitting that the power also makes him dangerous. 52 53 54

Conflict with Gozaburo Kaiba

Noah confronts Gozaburo during the battle at the Magical Research Institute. His lack of energy and severed connection to his Deck leave him vulnerable against Exodius, and Yu Ming takes over the duel to protect him. 163 165

Shinato’s Revenge

Calling himself Shinato, Noah reveals his intent to retaliate against Doma for manipulating his life and using the Underworld as fuel for an Evil God. Yu Ming challenges him, beginning a duel in which Noah invokes Ogdoadic Origin and builds an Ogdoadic field from the abyss’s resentment. 170 171

Notable Quotes

“Trust itself is a reward for the loyal, and your actions prove you are unworthy of this precious trust.” 31

“It’s my mission.” 54

“Don’t call me that! This world never needed anything like that!” 170

Trivia

• Noah’s early Geargia cards are described as Kaiba Corporation prototypes still undergoing testing and lacking full stability. 18
• He refers to Yu Ming’s deck as incomplete, recognizing the difference between Yu Ming’s available card pool and his dueling ability. 39
• In a later appearance, Noah—described as formerly using Yu Ming’s face—volunteers to care for children resurrected from Orichalcos until they can adapt to their new circumstances. 407