The Dark Kingdom was the cause of the downfall of the Silver Millennium. After their defeat, it was sealed away until it was reawakened by a reincarnated Queen Beryl, and the Dark Kingdom set up a base in a cavern at D-Point in the North Pole. She found the reincarnations of Endymion's trusted knights, the Shitennou, and turned them into her commanders. They began collecting energy to awaken Metalia, while searching for the Silver Crystal. Eventually, Tuxedo Mask too fell under the control of Metalia and acted as her agent, trying to obtain the Silver Crystal from Sailor Moon. After Metalia absorbed the Silver Crystal into herself, along with Tuxedo Mask and Sailor Moon, she grew huge, expanding around the planet, until she was permanently destroyed by Sailor Moon, ending the Dark Kingdom forever.
In the Sailor V manga, the Dark Kingdom had a sub-division known as the Dark Agency. Their modus operandi was to collect energy, and their reach spread further than Japan. It was run by Danburite, a subordinate of Kunzite, and was ultimately destroyed by Sailor V before she joined the other Senshi.
The Dark Kingdom were the main antagonists of the first season/story arc of the Sailor Moon anime. It is full of (mostly female) monsters that work for Beryl and the Shitennou: Jadeite, Nephrite, Zoisite, and Kunzite. They are located at the D-Point in the arctic.
Prior to the anime
During the end of the Silver Millennium, the Dark Kingdom, led by Queen Beryl, unleashed an attack on the Moon Kingdom, using an army of brainwashed humans, including the Shitennou. They laid waste to the Moon Kingdom as well as killing much of its people, including Princess Serenity. All hope seemed lost until Queen Serenity, at the cost of her own life, used her powers to seal away the Dark Kingdom and send her people to Earth to be reincarnated in the present day.
First Story Arc
In the present day, the Dark Kingdom's main goals are to unleash its full power, awaken Queen Metalia, and take over the universe. Towards that aim, Beryl seeks to gather human energy, and later seeks the Silver Crystal, with the intent to fuel the Dark Kingdom's power. Beryl first appoints Shitennou Jadeite to gather human energy, but he is defeated constantly by the Sailor Senshi; in Episode Thirteen, Beryl, tired of his constant failures, seals him in Eternal Sleep, appointing Nephrite in his stead.
Though Nephrite takes a different approach to gathering energy, the Senshi block him at every turn. During his missions, he often interacts with Naru Osaka, eventually developing romantic feelings for her. Upon discovering this, Zoisite, considering his relationship with a human a betrayal of the Dark Kingdom, kills him.
Zoisite and Kunzite take the reins; by this time, the Dark Kingdom's focus has shifted to finding the seven Rainbow Crystals - shards of the Silver Crystal used to seal away the Dark Kingdom's most powerful monsters, the Seven Great Youma, who have been reborn on Earth as humans (or in one case, a cat.) While each monster is reawakened, Sailor Moon is able to restore their true forms; eventually all the fragments are found and united into the Silver Crystal, restoring to Mamoru and the Senshi their memories of their past lives in the Silver Millennium and giving Sailor Moon ultimate power.
After Queen Beryl kills Zoisite for disobeying her orders, the Dark Kingdom captures and brainwashes Mamoru, who begins working alongside Kunzite. Eventually, by putting their powers together, the Senshi are able to destroy Kunzite as well. In episodes 45 and 46, the Sailor Senshi make their way to the Dark Kingdom to fight Queen Beryl; all except Sailor Moon are killed by the DD Girls. Beryl then teleports Sailor Moon to the Dark Kingdom to fight Prince Endymion, who is completely under her control. However, Sailor Moon manages to break the spell on him and he injures Beryl. When Beryl begs Metalia for more power, Metalia instead merges with her, creating Super Beryl. Sailor Moon, upon becoming Princess Serenity, and with the spirits of the other Senshi supporting her, destroys Super Beryl, as well as the Dark Kingdom, using Moon Crystal Power; the Senshi are resurrected, but neither they nor Mamoru remember their true roles until the cats reawaken them in Sailor Moon R.
Members of the Dark Kingdom
- Queen Metalia
- She is the supreme ruler of the Dark Kingdom.
- Queen Beryl
- Beryl is Metalia's second in command.
- They are the four loyal and devoted generals to the Dark Kingdoms, consisting of Jadeite, Nephrite, Zoisite, and Kunzite.
- Brainwashed Endymion
- After being brainwashed by the Dark Kingdom, Endymion served Beryl, fighting alongside the other Shitennou, until Sailor Moon freed him from their control.
- They were monsters of the Dark Kingdom, who carried the missions of the Shitennous. It includes the Seven Great Youma and the DD Girls.
- The Dark Kingdom is the only villain organization of Sailor Moon to appear in every version.
- They are referred to as the Negaverse in the DIC English dubbed