Dark Zagi's History
Dark Zagi, originally known as Ultinoid Zagi, is a demonic clone of Ultraman Noa and the main antagonist of Ultra N Project. He was created by a race of aliens as a biological weapon against malevolent creatures called Space Beasts until Zagi turned on his creators, which they tried to end him by destroying their home planet but failed. Zagi then took an army of Space Beasts and began a spree of universal destruction on any planet in his way.
Space Beasts were a menace in the galaxy harboring the M80 Nebula in the Scorpio constellation, they were similar to the monsters of the World of the Land of Light, and their origins are unknown. Zagi came into existence on the home world of the beings known to TLT as the Visitors, the jellyfish-like race, as an answer to this problem. They had witnessed the awesome power of a being of light known as Ultraman Noa, an immortal force of good who had visited other planets to defend them against monsters. Desiring a protector of their own, they went to work to create a duplicate of the great giant, an anti-Beast bio-weapon bearing the form and power of the ancient protector. However the end result would be a horrid, dark and twisted mockery of Noa's form known as Ultinoid Zagi.
In order to counter the Space Beasts' ability to evolve from predation, Zagi was installed with a self-evolving program. But the giant awakened with a distorted consciousness, being well aware of his nature as a "duplicate to the giant of light" and resorted to evolve the Space Beasts instead as he went astray. For the sake of surpassing the original, Zagi incorporated the qualities and characteristics of the Space Beasts, and eventually the title of Dark Zagi.
The above event is also recounted in the manga adaptation of Ultraman Nexus. However, Zagi reason of going rampant is changed to him viewing peace as a "boring" concept.
The dark giant forced his creators to destroy their home world, by causing their star to go supernova in an attempt to destroy him, their endeavor cast him into another universe where he fought the Residents of the Land of Light. During the battle, he briefly held Zoffy as a hostage. This was a battle that made Ultraman Noa a legend in the Land of Light as he eventually cast his doppelgänger back into the tear. In his home universe Noa sealed the tear at the expense of most of his energy forcing him into lesser forms, while Zagi lost his physical form from the same technique. Knowing the supernova would carry the particles of Space Beasts to another galaxy, his creators fled to Earth, the world they predicted would suffer because of their actions and Zagi took off after them followed by Noa.
Arriving in Colorado, where TLT, the TLT, was being formed with help from the newly arrived visitors, he possessed a resident scientist Hajime Yamaoka and proceeded to slaughter the scientific team, all save for a young girl, the child of two of the scientists, somehow knowing her destiny, his goal was to use that for his ultimate plan.
Later on he called his favorite Space Beast to be the first to attack the people of Earth, called Beast the One by military, it had the Ultra like ability to merge with another being in which it used to absorb organisms to enhance its base form before being killed by Ultraman the Next; Noa's weakened form with the first Dunamist Shunichi Maki.
As TLT was formed, Zagi infiltrated it as Mitsuhiko Ishibori, having erased all memories of his host's previous life. There he watched the young girl he spared, Nagi, grow while corrupting her crush and mentor Mizorogi to further deepen the darkness in her heart. With the appearance of the Second Dunamist Jun Himeya, the host of Noa's semi-evolved form Nexus, Zagi began the long scheme to gradually strengthen the light using his pawns, the Space Beasts, Dark Faust, Dark Mephisto (Mizorogi), and Dark Mephisto (Zwei).
By the time of the third Dunamist, Zagi was left with no Dark Giants of his own to command his monster legions so he backed them up with his own dark power. After displaying his power of the Dark Field G he would codename Unknown Hand, due to the fact the he never physically appeared as far as TLT knew. All of these creatures were intentionally sacrificed so that the power of Nexus could be increased, allowing him to regain his body. Following the fall of the second Mephisto, he began the last phase of his plans, having his beast Mega Flash attack a city in broad daylight, creating the fear needed to increase his power, while weakening the power of the Visitors' potential barrier which limited the appearance of Space Beasts. After the destruction of Izmael, the baton of Nexus was passed to Nagi after he left Ren.
Upon revealing his true nature and attacked the command center, Mitsuhiko/Zagi departed to Level 0, where Lethe was housed, the power of the Visitors was now too weak to stop him. There he defeated Komon, Captain Wakura, and Illustrator with Nagi shortly after. Zagi proceeded to tell the Night Raiders his entire plan. After Nagi turned into Nexus, Lethe synchronized with Nagi's emotions and memories and consumed all the energy in her body because of her hatred, allowing Zagi to absorb this energy in turn to restore his physical body.
After Zagi returned to his true form, he attacked the city of Shinjuku and caused the simultaneous Beast attacks across the globe. After saving Nagi from Lethe's hold on her, Komon became the fifth Dunamist of Nexus and transformed as Zagi was destroying the city. Zagi had not anticipated another Dunamist acquiring the light, as Nexus used Anphans, Junis and Junis Blue as he barely held his own against Zagi. As the crowd of humans were in awe and had great hope of the silver giant hero winning, Nexus turned into Ultraman Noa. Zagi roared in rage at the sight of his template restored and challenged to a final battle over Earth. As much as Zagi tried Noa easily overpowered the fiend and after being literally punched into orbit by the Noa Inferno, Noa used the Lightning Noa to destroy Zagi once and for all.
While there would still be Space Beasts roaming the Earth, no one lost hope as humanity fought back many times.
