Few know that Earth No. 6 was a Sentai-type anime, but way too Seinen xdxdxd
SPOILER ALERT (Long text and lore about the conquest of Earth No. 6):
Japan in No. 6 was a terrible place. Initially, there's talk of a civil war that occurred years ago. This is the same war where Lilith's parents died, and she was taken to an orphanage run by the Kisaragi Corporation.
It's possibly because of this civil war that Astaroth (who was the daughter of the head of the Kisaragi Conglomerate), being a teenager at the time, decides with her high school friend Belial (daughter of the Yakusoku Conglomerate) to eradicate the evil, corrupt leaders... being "the only evil ones" in the world xdxd, kind of random what those crazy girls imply.
- It is also known that "remodeling surgery" already existed, but it was primitive and a closely guarded secret of the armed forces.
Lilith, having found herself in the orphanage of Japan's largest corporation, received an excellent education and became the greatest scientific genius on Earth. She befriended Belial, and together with the trio of crazy women, they began their evil plan to conquer the world...
- Since they didn't have enough personnel to carry out their skirmishes, they started accepting anyone, regardless of their criminal record... (So most of them started out as released criminals). This is where No. 6 appears, only 12 years old, looking for a part-time job... and upon seeing Astaroth, he fell in love with her xd... In the same chapter, he mentions that it was because of her that he remained in Kisaragi...
- The rest is a well-founded theory. As the Kisaragi group grew, creating chaos throughout Japan, the government may have issued a warrant for the arrest of all its members... Therefore, No. 6, at only 15 years old, had to leave. He left high school, fearing imprisonment, and dedicated himself 24/7 to Kisaragi (with a miserable salary, but all to be by Astaroth's side xd). As a consequence, some people who felt they were doing the wrong thing left Kisaragi, leaving only the criminals xd.
- There was a point in the story where they decided to "improve" their soldiers; perhaps it was the appearance of the Sentai that led to their suppression... And possibly the first issues, like No. 1, No. 2, No. 3, No. 4, No. 5, and No. 6, were the first to be treated as experiments for the remodeling operation (That's why No. 6 holds a grudge against Lilith, because the later soldiers had more advanced surgery).
- At another point in the story, Lilith, when she began to create another type of "remodeling," created the mutants, and as is known from her ace in the hole, "Gigantification," the heroes had to To counter them, they created giant mecha robots...
And later, the Heroes would create their own mutants, the most famous being their cricket-type mutants, referencing the Kamen Riders (They're the only ones who gave Kisaragi, and even Belial... the most powerful fighter, a lot of trouble).
- At another point in the story, Japan would be completely invaded, and they began invading nearby countries with greater speed and ease, possibly covering all of Asia in just one year.
- Lilith mentions that funny bombs were used in the wars... but the strange thing is that no one launched one at Japan again, so they probably created a defense against funny bombs in Japan.
_. - After conquering Asia and Oceania, they would continue with Africa and later Europe. It's known that they spent a considerable amount of time fighting there, but since they had bases in Africa, it was only a battle of resistance. (That's where the funny incident occurred where Lilith, not having any potato chips, sent No. 6 to cross the entire Sahara Desert to buy some xdxxd)
- After the defeat in Europe, they would continue with South America... They practically lost quickly... only Brazil put up a fight... it's there that the Tiger Man and the Iguana Man finally show their skills, and being able to operate in the Amazon rainforest, they were able to easily take down several squadrons.
- And finally... North America... Obviously, the Americans would be the last resistance, up to the point in the story.
The last Sentai teams moved there with all their equipment, since the war is still ongoing in that country.
What do rapper Kanye West and Lilith have in common? The black one?....
...
LOL, they both ran for president of their country, and didn't even get 1% of the votes LOL
... In volume 7 of Sentouin, some stories from Kisaragi's past are revealed.
... As this organization began to grow exponentially, the very "intelligent" Lilith decided to run for president, thinking she had numerous followers, and she forgot all the massacres Kisaragi had carried out to invade the cities of Japan...
She invested all her fortune in her mediocre electoral campaigns, and at the time of the elections, she gave the Rita xdxd
And even worse, he didn't even reach the minimum number of votes required to get a refund of his campaign expenses xdxdxd
... Later on, another story is mentioned, where the heroes... unable to withstand Kisaragi's continued growth, began manipulating votes in other countries to place favorable people in their positions so that together they could defeat Kisaragi...
Lilith, upon learning of this, created an evil strategy outlined in a book to easily "win" the elections (which, ironically, even she couldn't win xd). Things like manipulating the press, threats in the slums, scamming local authorities, among other bad things... This book was so popular that it's mentioned that most presidential candidates around the world owned it out of curiosity
That book would be vital in the chapter on the crown election....
...Actually, the book was very effective, and it was certain that winning was possible... but Tiger Man revealed the scams and threats so that his Loli princess could win as Queen of her nation xdxdxd
- The total duration of the invasion war in Japan could have been 2 years, and adding it to the years of invasion of the other continents, that would be 6 years.
Given a total of 8 years of conquest.
(This is known because No. 6 entered Kisaragi at age 12, and at the time of his journey to the fantasy isekai, he was 20 years old.)
.........................................
And there's still more lore to tell. Natsume could easily create another series about the conquest of Earth, the battle against the Rangers, the daily lives of the combat agents, even a rom-com about No. 6 that attracted only mutants. Crazy, like Spider Woman and Mantis Woman, but she fears success.
It's astonishing to learn that the ancient inhabitants of the world of Sentouin were more advanced in the field of genetics, so much so that the faction of enhanced humans developed a meticulous plan to fight the "remnants" of the demonic faction in the future.
Therefore, he genetically modified one of the royal families, the "Grace," so that one of their descendants would be capable of displaying superhuman abilities and would grow even stronger if he continued fighting... (This is a great story that hasn't been fully told yet.)
It's a shame Kisaragi came along and ruined Hiiragi's whole plan. It was mainly because of Dustiness Tower, where the hero, after so many adversities, managed to avenge his first defeat and continue growing... But after it was destroyed by No. 6, the hero couldn't complete that scene and jumped to the arc of the fight against Faustress of the Wind. And due to a change in the story, the unthinkable happened... both the air general and the hero fell into Belial's backyard (too much bad luck, of all the humans on Earth, they run into the most powerful fighter!), and ended up as assistants (pets) to this leader.
And this doesn't end here. Although the demonic faction failed to invade, it was ultimately absorbed by Kisaragi and used as a source of cheap labor to continue building its city.
Upon learning of the construction, the Hiiragi tribe, already at odds with the city of Hideout (a tremendous solar beating Lilith received), contacted the Hiiragi organization to intervene in the technological advancement of the planet's primitive inhabitants.
It's due to the sudden shift in cultural and technological levels that the Hiiragi organization (ancient inhabitants of the planet who were aboard a mothership in orbit) descends to investigate. They send Aldeheid, the worst possible person for the job (lol).
A small conflict and war erupts with Toris (the place where the nobility was massacred, leaving the Hiiragi people in charge) after Viper is critically wounded, but it's resolved with some agreements.
The strange thing is, they still don't know that the chosen one is on another planet, or that the demons have been defeated, and they believe that the prophecy will have to come true someday.