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Description
Queen Metaria is the ruler of the Dark Kingdom and the hidden source of evil behind that organization in Pretty Guardian Sailor Moon Crystal. She is not a physical being but an extraterrestrial entity composed of pure dark purple energy, appearing as an amorphous shadow-like creature with glowing green eyes, a red mouth, and a bright reddish-purple diamond-shaped mark on her forehead. Within the continuity that Crystal follows, she is described as a demon born from the sun, a malignant force of darkness rather than a person with a distinct identity.

Her background reaches back to the age of the Silver Millennium, the ancient era of the Moon Kingdom. At that time, when Prince Endymion of Earth and Princess Serenity of the Moon were to be united, Queen Metaria exploited the bitterness of certain humans who resented the union. She preyed on the unrequited love that the human woman Beryl held for Endymion, corrupting her and turning much of Earth's population against the Moon Kingdom. This corruption led to a war that brought about the destruction of the Silver Millennium. In response, Queen Serenity used the power of the Silver Crystal to seal Queen Metaria away, imprisoning her so that she could not continue spreading darkness.

In the modern era, the reincarnated Beryl rediscovers the sealed Queen Metaria in the Arctic region known as D-Point and is returned to her service. From that point, Queen Metaria acts as the supreme power behind the Dark Kingdom, while Beryl serves as her chief agent and voice in the mortal world. The energy that the Dark Kingdom's forces harvest from humans is channeled into Queen Metaria, gradually restoring her strength so that she can be fully released from her imprisonment.

Queen Metaria's personality is minimal because she is less a character and more a force of pure malice. She is malignant, patient, and manipulative, preferring to corrupt others and use them to achieve her ends rather than confronting her enemies directly. Her motivations are simple and driven by appetite and ambition: she feeds on human life energy, desires the power of the Silver Crystal, and seeks to spread darkness across the Earth. Obtaining the Silver Crystal is central to her plan because it is the key to completing her release and overwhelming all resistance.

Her role in the story is that of the ultimate antagonist behind the Dark Kingdom's schemes. Although Queen Beryl leads the group in practice, Queen Metaria is the true mastermind whom Beryl serves. Near the climax of the first arc, after the reincarnated Prince Endymion, Mamoru Chiba, is captured and brainwashed, Queen Metaria enters his body and uses him as her host. The Sailor Guardians confront her through this possessed vessel, and they ultimately sacrifice their lives to prevent her darkness from consuming the Earth. Sailor Moon then draws on the power of the Silver Crystal to destroy Queen Metaria entirely, and afterward she revives her fallen friends.

Her key relationships are largely defined by servitude and opposition. Queen Beryl is her most important follower, the vessel through which she receives energy and exercises influence over the Dark Kingdom. Prince Endymion becomes her unwilling host in the final confrontation, with his body serving as her instrument. On the opposing side, Queen Serenity is the one who originally sealed her away, and Sailor Moon, as the reborn Princess Serenity, is the one who finally destroys her.

Queen Metaria does not undergo meaningful development as a character. She is a static, ancient evil whose presence becomes more threatening as she absorbs energy and regains power. Her importance to the story lies in the escalation she represents: the longer the Dark Kingdom operates, the closer she comes to awakening fully, until she finally manifests through Endymion and forces the final battle. In the larger manga continuity that Crystal adapts, she is later revealed to have been an incarnation of Chaos, the greater entity of destruction that reappears throughout the saga.

In terms of abilities, Queen Metaria can absorb life energy to increase both her power and her size. She is capable of expanding her dark form until it envelops the entire planet, and her influence can spread chaos and violence among people while causing widespread destruction. She can corrupt the minds of others, manipulate them into serving her, and possess suitable hosts, as she does with Endymion. Within the manga continuity followed by Crystal, she also possesses the power to turn those who oppose her into stone. Despite these formidable abilities, she is ultimately vulnerable to the Silver Crystal, which is the one force strong enough to seal or destroy her.
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