Ultraman Nexus's History
Ultraman Nexus is Ultraman Noa's second devolved form, and is the form a Dunamist assumes after using the Evoltruster. Starring in Ultraman Nexus, his story represented as the final phase of Ultra N Project. After evolving from Ultraman the Next, Nexus would resurface in 2008 to fight against a wave of Space Beast assaults, slowly growing in strength after bonding with multiple Dunamists and finally regaining his long lost form Ultraman Noa in his battle with Dark Zagi.
Four years after the 2004 Shinjuku Disaster, Noa would base himself on Earth and evolve further to become Ultraman Nexus, beginning his own actions to protect the world from Zagi and his minions. Nexus chose Jun Himeya, a former war photographer who experienced survivor's guilt from his inability to save an orphan named Sera, as his host. The fate of being chosen as a Dunamist led Himeya to assume it as punishment for his past sins. During his time as the host for Nexus, he was first seen as another Space Beast by most of the Night Raiders, while member Kazuki Komon instead became fast friends with him after being saved from a Pedoleon and several other Space Beasts. Komon also kept Himeya's identity as Ultraman secret from his superiors and often butted heads with his immediate superior Nagi over the issue of whether Ultraman should be trusted or not.
He later encountered Dark Faust, a female Giant of Darkness in league with the Beasts while proving herself as a challenge to Nexus due to her mastery in the Dark Field. In their final battle, Faust revealed herself to be inhabiting Riko Saida's body after the latter died six months prior. Komon's intervention in the Dark Field not only led to Riko's emergence, but also her death at the hands of Nosferu. After his battle against Faust and Lafleya, Nexus and Himeya were acknowledged as an ally to the TLT while Dark Mephisto emerged as Nexus' second adversary. Said giant tried to manipulate Komon's depression to pull him into the dark side, until he was able to move on from the past, allowing TLT and Ultraman to finally destroy the regenerating Nosferu. Not long after, Jun's connection to Nexus was exposed and he was kidnapped by TLT in hopes of studying the Ultra's power. After multiple tortures, Jun managed to escape and was treated by his old colleague Sakura, but the injuries he faced greatly weakened his body so much so that according to the Illustrator, another transformation would lead to his death.
Time would prove his words to be true as the sustained injuries took a toll on Nexus when fighting against Kutuura and trying to save Sakura from Mephisto's grasp. In his death, Nexus was crucified in the Land of the Dead while Kutuura's tentacles slowly drained his light. Himeya would later met Sera's ghost, who corrected him of the purpose he was given the light and thus allowing Nexus to be revived via a reserved energy source. Initially in a weakened state, the Night Raiders fired their last supply of Ultimate Vanisher, providing Nexus with enough energy for a counterattack and he finally he defeats Mephisto for good. After both giants seemingly died in the explosion, Himeya appeared to Komon one last time, telling him that the light shall be passed to someone else.
Noa's power was later passed on to Ren Senjyu, a 17 year old genetically-engineered human with ESP abilities, but his flawed creation led to a limited lifespan, being calculated to die at the age of 18. Having escaped his original school, Ren wished to spend his last days in Japan surrounded with smiles and laughter. After his first battle as Nexus, he followed his predecessor's trait by befriending Komon in addition to Mizuo, a girl from the Memory Police. While fighting under Nexus' mantle, Ren provided the Ultra with Junis Blue, a speed-oriented form, and was assisted by the original Mephisto in fighting the latter's successor and clone, Dark Mephisto (Zwei). During Mega Flash's emergence, Ren almost suffered the same fate as Himeya was, targeted by TLT to study Nexus' powers before the Night Raiders rebel and hide him in the forest. When engaging in a battle against Galberos and Mega Flash, Nagi's words renewed the youth's resolve to fight, defeating both monsters with the Chrome Chesters' help. As the cure for Ren's genetic flaw emerged, he was faced with a choice between saving himself and saving the world from the Space Beast Izmael. As it seemed that he would fall into exhaustion, Illustrator's encouragement allowed Nexus to rise for the final time and destroy the Space Beast. After separating from Nexus, Ren finally survived due to the cure's intervention.
As the light chooses Nagi, Mitsuhiko Ishibori revealed himself as the Unknown Hand, the traitor that was foreshadowed by Mephisto who proceeded to attack his own comrades while making his way to Lethe, leaving his creators weakened. After provoking Nagi as her parents' murderer, she transformed into Nexus but was quickly captured by Lethe, harvesting Nexus' energies for Ishibori to absorb to restore his true form. As Dark Zagi, he rampaged through Japan and signals simultaneous beast attacks around the world. Komon jumped into the darkness and saved both Nagi and Nexus, in the process inheriting the Ultra's light. Arriving in the city, Komon used his newfound power to fight against Zagi, with the spectators regaining their memories of Ultraman after 5 years and they cheer on the giant once more. His memories of his predecessors allowed him to use all of Nexus' forms as and eventually helped regaining his lost true form, Noa. The silver giant curbstomped and defeated Zagi once their finishers clashed, therefore liberating Earth from the dark ruler. Though Space Beasts continued to appear, the Night Raiders were still there to face the threat with Noa and Komon.
Ultraman Noa fought against Etelgar prior to Ultraman Ginga S The Movie and devolved into Nexus due to exhaustion. He was then sealed by Etelgar along with the other main Heisei Ultras. After being freed by UPG, Nexus along with Max, Mebius, Cosmos, Zero, Ginga and Victory went inside Etelgar's castle while Tiga, Dyna and Gaia fought the Eteldummy of Five King. When the Ultras got to the first floor of the Castle, an Eteldummy of Dark Mephisto appeared was created, and Nexus ran to fight him while the others left to find Etelgar. Nexus turned into Junis and destroyed the Eteldummy before joining the others as Crossover Formation.
When Xio Deputy Captain, Sayuri Tachibana was about to be killed by two Space Beasts Bugbuzun, the Evoltruster appeared and she transformed into Ultraman Nexus. Using this new power, she crushed the aforementioned two monsters before fleeing to Canada and fighting against Bemular to defend her family. The next day, a Bugbuzun appeared and grew from the Dark Thunder Energy. Xio arrived shooting him while Daichi Oozora transformed into Ultraman X to fight the Space Beast, but was overpowered by him. Although being faced with the dilemma of a Dunamist, Sayuri reused the mantle for the last time to assist Ultraman X, first by generating the Meta Field before the two combined their finishers to destroy said monster. After the battle, the Evoltruster faded from Sayuri's hand as she passed Nexus' words to Daichi to never give up on his dreams. As a gift, a Type U Cyber Card of Nexus appeared on Daichi's X Devizer.
Absolute Tartarus sent Absolute Titan to Noa's sacred ground of Planet Babel, before the Ultra Force arrived to halt his progress. Ultraman Ribut soon arrived to assist them, before Noa's light suddenly emerged from the ruins, manifesting as Ultraman Nexus, who attacked both Ribut and Titan before he changed into Junis to open his Meta Field, trapping the two of them within it, leading them to speculate that Nexus' defensive instincts have gone out of control.
With no other option, the two became reluctant allies with a common enemy to try and escape Nexus' power. Sora managed to inform them the disabling the Armed Nexus would cut off the Meta Field, leading to the two managing to escape. Nexus, as Noa, spoke to both of them in a dream-like world, as he had planned the whole encounter as a means to make Ribut and Titan see that they could work together and understand the Ultras and Absolutians are not so different.
Outside the Meta Field, Absolute Tartarus summoned Ultroid Zero to help him in destroying Noa, where Nexus, now in his Junis Blue form, arrived to defend a weakened Ribut from the robot. Soon, Nexus evolved back into Noa before ending the battle and fading away.
