Alliance-Taimanin War

"“We will show those Taimanin the true meaning of justice!” —Gouten Amagami" The Alliance-Taimanin War (連盟対魔忍戦争), also known as the Japanese Superhuman Civil War (日本超人内戦) was a conflict between the two largest superhero factions in Japan, the Justice Alliance and the Taimanin. The war was a spill-over of the larger nationwide Fuuma Rebellion and resulted from the disagreements on the passing of the Code of Superhuman Registration by the Japanese government. The first third of the series Justice Alliance of Japan Victory Soul is centered around this conflict.

Background
The Justice Alliance had been a superhero organization that acted independently from the Japanese government, which gave them approval to engage in operations so long as they didn't "go out of line". This allowed the Alliance to save many lives, Japan and the world on several occassions. However, due to the Justice Alliance's interference in the Second Korean War, fear and paranoia, of either a third world war or a world ruled tyrannically by the Magi species, ran rampant across the majority of the international community, as anti-superhero resentment grew in nations such as Japan, the United States, the United Kingdom, much of the European Union, the People's Republic of China, the Eurasian Union and many more. Months before its eventual dissolution, the United Nations passed its final General Assembly Resolution, Resolution 75/301, which stated that every country must have a law where all superhuman inhabitants of that country were mandated to register and must only act in accordance with their respective government, lest they be convicted as vigilantes or terrorists.

Reputation at Stake
On June 13, 2027, in light of the sparking of the Fuuma Rebellion, the Japanese government and Diet announced that they would implement the Code of Superhuman Registration, which would coerce every superhuman and Magi inhabitant in Japan to register and work for government in approved operations, very similar to the Taimanin. Many members and leaders of the Alliance opposed the passing of the law. Their viewpoint naturally put them at odds with the Taimanin, who had been allies with them on several instances.

A Shady Ally
Danjou Fuuma went to Ichirou Tachibana and told him that if they don't want to be "lapdogs to the government", they have to join him in his cause, to overthrow the Taimanin and the Japanese government. Danjou even said that if he became the new ruler of Japan, he would not interfere in the Justice Alliance's operations, and that he saw them as "better guardians of the Earth than the Taimanin]].

Bragging Rights
The Alliance and Taimanin agreed to settle the conflict with a ten-on-ten elimination team battle in the Gosha Academy Stadium in Gosha Village, between the "ten of their best" of the two groups. The members of Taimanin's team would be Asagi Igawa, Kurou Yatsu, Murasaki Yatsu, Kousuke Sawaki, Ryuunosuke Shirogane, Tatsurou Akiyama, Yukikaze Mizuki, Rinko Akiyama, Shizuru Kousaka and Kurenai Shinganji, fighting the Alliance's team that would compose of Ichirou Tachibana, Zark Albatrosa, Shougo Futaba, the Goddamn Samurai, Lily Ramses Futaba, Ingrid, Annerose Vajra, Marika Krishna, Glenmalt Rondo and Onimaru. The agreement was that if the Taimanin won, the Alliance would have to register for the Japanese government when the Code would pass into law. But if the Alliance won, the Taimanin would allow the Alliance to continue to run independently but would not interfere in their future operations.

Fighting the Real Threat
Ichirou and Asagi followed a trail left behind by Danjou, which led to a fight between the two and Danjou. After Gamera defeated Danjou's kaiju form Greatest Caesar, Danjou crashed in the middle of the Gosha Stadium, where he and Asagi have one last confrontation, before the Strongest Taimanin was able to strike the evil Fuuma head down dead. However, the troubles were not over as Ichirou and Asagi, being the last two participants in the team battle not yet eliminated, fought in a long and drone-out fight to settle matters once and for all. When Asagi was about to take Ichiro out of the ring, Onimaru intervened and tried to attack Asagi, but was subdued and thrown out again by the Strongest Taimanin. However, she was distracted long enough for Ichirou to defeat Asagi and take her out of the ring, giving him and the Justice Alliance victory over the Taimanin.

The Alliance's victory celebration however was cut short when pitch black clouds obscured the daylight sky, covering the entire Gosha Village in darkness, and light rays of different colors eminated from the clouds. The Alliance superheroes were unnerved by the sudden darkness and glowing of random colors across the sky. Lightning struck and a loud beastly roar was heard throughout the entire countryside, filling everyone with awe and fear. Afterwards, the clouds opened up, revealing a large ray of rainbow-like light upon the whole village, and from the sky, a colossal three-hundred-meter being, clad entirely in white with the face of a lion and several colored gems, descended and landed with a thundering thud. Uncertain that the unknown being may be friend or foe, many Alliance superheroes quickly acted and transformed into the kaiju forms and tried to fight off the being. However, with the being's immense power, it was able to take down and force all of the kaiju out of their transformations within only a minute. Feeling powerless and defeated, the Alliance could only stare in awe at the unknown being, which roared loudly and rose back up, disappearing to the sky. A bellowing voice from the dark skies declared that the Earth will now become the domain of the "highest existence" and that "those that oppose the zenith of the universe will be damned to nothingness". The Alliance realized that this may be the start of another great conflict, perhaps one that will be greater than those that came before.

Aftermath
Similar to how the Fuuma Rebellion tarnished the repuation of the Fuuma clan in the years to come, the reputation of the Justice Alliance was permanently damaged to the Japanese public and government. Even during the Zenith War, when the Alliance was defending the Earth from the world-destroying Zeniths and Unknowns, public perception of them worldwide was extremely negative. This perception led to the Japanese government and other countries labeling the Justice Alliance as a "criminal vigilante" or a "terrorist group", at some point between the Zenith War and the Mycenaean War.

Trivia

 * The conflict is inspired of the events of the 2006-2007 Civil War miniseries published by Marvel Comics, with similar circumstances that led up to the conflict between superheroes.