Sindicate of Moonless Night

The Sindicate of Moonless Night (無月の罪罰), known more commonly as the Incubus Faction, was the last remnant of the contingent composed of mostly Incubi and Succubi in the Underworld. Responsible for the events of Samurai Dragon Amatsu and the Lady in the Water, Kaiju of Retribution Tatsura and Tatsura vs. Hellbourne, they only became an active threat during the Kaiju World War Saga. It was led by the "Incubus King", an immensely powerful Forbidden God pretending to be a demon to rise in the ranks of the faction and fulfill their hidden motive and ambition.

History
Six thousand years ago, during the outbreak of the Great Ancient War, the Incubi and Succubus were a powerful magical tribe of demons, highly intelligent and beautiful. Their leader was the Forbidden God Darius the Hellbourne, who aspired to bring the "the Darkness Itself" into the world through an unknown forbidden experiment. However, after the experiment horribly backfired, it destroyed most of their civilization and dominance in the Underworld. A number of survivors have been turned into Lust Beasts, amorphous Demons, known for their high sex drive but instinctive low intelligence.

Darius, along with his son, the Incubus King, remained hidden and awaited for the day where they would not only return to their position of glory in the Underworld but also bring all worlds under their rule. In the 20th Century, some time after World War I, immediately after the failed Nazi Party coup in 1923, the King of the Incubus made a deal with Adolf Hitler, who at the time was filled with rage and anger at his homeland and those who he saw as the enemies, and quickly agreed, selling his soul and being imbued with knowledge and power to subjugate mankind, with his followers and men following suit. Without the rest of mankind knowing, the Incubus Faction became influential to the rise of the Nazi Party and their seizure of power in Germany that the swastika, a symbol of the Faction, became adapted as an emblem for what would become known as the Third Reich. As World War II spread across Europe, the Sorcerers' Society in Egypt and the Order of the Heavenly White Knights, a superhuman fighting sect of the Roman Catholic Church, discovered the Incubus Faction's indirect interference in the surface world and influence on the German people and worked to put an end to that. They were able to foil much of the Nazi Party's destructive plans that would have won them the war and force the Incubus who were hiding in the human world to retreat back into the Underworld. Even after the end of World War II, a couple of Nazis who made deals with the Faction would go into hiding or join other evil groups, among them Count Brocken.

In the 21st Century, Darius and his son, using the alias of Yoshima and Ryuuji Kuroi, manipulated part of the Japanese government and the Washizu Group to produce the EVE chips as a means to brainwash and recruit Taimanin into their ranks. While using Seishu Academy and Under Eden to brainwash Taimanin and humans with the chips, having resurrected Nobunaga Oda and his subordinated in the present day, disposed of Yukimura Katsuki, brainwashed his wife Shiranui Mizuki into the group, and wishing to do the same to Rinko Akiyama and Yukikaze Mizuki. Darius created Redzone, a destructive machine developed from Yukimura's motorcycle to fight and absorb the powers of the Taimanin, channel them into the Magic Tools and use them to awaken the Dark Phoenix De Szark, which was done. However, the plan was foiled by Yukikaze and Rinko's boyfriends, Tatsurou Akiyama and Zark Albatrosa respectively, with the help of Sanshiro Tsuwabuki, Hanzou Hyakki and the Grandwalkers. This led to a battle between Taimanin and Grandwalkers against Darius, Redzone and De Szark, with Darius defeated before being killed by his own son Ryuuji.

In the end of Taigaia vs. Senryuukaku, it was mentioned that powerful "Inma" are using the power vacuum after Edwin Black's death to gain influence. Indeed, the Incubus King stepped out of the shadows and revealed the name of faction under his control, the "Sindicate of the Moonless Night", the last bastion of the Incubi and Succubi to bring their civilization back to their former glory six millennia ago and greater than before. However, within the Sindicate, powerful demons like Ishtar, Lulu Manhattan and Ambrose seemed to struggle for power. Ishtar sought out the "true heir" and "son of the previous Incubus King".

At some point after the Third Underworld War, Count Brocken and Marshal Hidler, a clone of Hitler who had been turned into an oni and previously became a general in the Hyakki Empire, were summoned by the Incubus King and his offshoots and offered to complete the original deal that Hitler and the Nazis had with the Sindicate over a hundred years ago: create a new Reich for the German people to willingly give themselves up to, conquer the world and purge it of all "undesirable" and "weak creatures" in tribute to the Sindicate and its master.

In Tatsura and Wataru, the Sindicate would make their final move when the Incubus King, accompanied his mistress Shiranui and his siblings, brought the Darkness itself into the group and sought to complete where his father failed six thousand years ago, his ultimate goal: to awaken the Nanashi-no-Yami, annihilate the entire universe in total darkness and create a new world of only Incubus and Succubi.

Leaders

 * Darius the Hellbourne – Formerly, before being murdered by his own son
 * Ryuuji Kuroi/Incubus King
 * Nanashi-no-Yami – The Final God of Darkness, its awakening being the ultimate goal of the Incubus King and his group.

Executives

 * Shiranui Mizuki – The Incubus King's right-hand woman and "favorite concubine"
 * White Succubus
 * Guignol
 * Gejisuki
 * Gap Fuuma – The traitorous one of the twin sons of Kotaro Fuuma and Hebiko Aishu from the future and a high-ranking general in the Cyber Ring that entered an alliance with the Sindicate.
 * Count Brocken – A Nazi general-turned-demon who previously worked for Dr. Hell, then retreated to the Principality of Revia and after the Third Underworld War, ultimately joined the Sindicate.
 * Marshal Hidler – The clone turned oni of Adolf Hitler

Puppets

 * Shigeru Washizu
 * Hideo Inui
 * Morita Kazutoyo
 * Muneichi Yazaki
 * Real

Incubeasts
The Sindicate has several demonic kaiju in their ranks, classified as Incubeasts. A number of them could be summoned through Gate of Moonless Night rituals by sacrificing Magic Tools.
 * De Szark
 * De Lupanther
 * Ga Ryuzark
 * Rousseau Montes
 * Gyasuka

Orega Auras
Later on, through an alliance with Cyber Ring, the Sindicate would adopt their future technology of utilizing Orega Auras, biotechnologically-created kaiju, through Deletrons.
 * Jelenny
 * Jawal Pendora
 * Do Ryuzark → Do Raganzark

Subsidiaries

 * Under Eden
 * Washizu Group
 * Dark Horror
 * Six Heaven Army
 * Zero Society (defected)
 * Fourth Reich

Trivia

 * The group's name in English is a pun of the word "sin" integrated into "syndicate", a word describing a large criminal organization.
 * Likewise, in Japanese, the pronunciation of the kanji 罪罰 in its name is "zaibatsu" (ざいばつ), which also describes a massive corporate conglomerate (財閥).
 * Not all Incubus or Succubus are part of the faction, such as not all vampires follow Edwin Black or his organization NOMAD.
 * The Sindicate is partly inspired by the villain organization HYDRA from Marvel Comics, which, similar to the Sindicate, had its origins dated thousands of years prior, was affiliated to Nazi Germany, employed several Nazis into their ranks and utilized policies, tactics, ideology and imagery akin to those of the Nazi Party and various Neo-Nazi factions.