The Monolith (モノリス Monorisu)
The Mother (母 Haha)


Celestial Spirit


Female Female

Hair Color


Eye Color


Professional Status
Key Type



Mirio Tachibana

Previous Owner



Monday, Wednesday and Friday.


Mirio Tachibana


Mirio Tachibana

Previous Partner

Found on some Ruins

Personal Status


Way of Combat




Cassiopeia "the Seated Queen" is a powerful Celestial Spirit that sold her normal form decades ago for more power, but she is also considered the most beautiful thing in the world for the aura that she emmits from the stones. It's actually Mirio's power house, and only uses her at extremelly rare situations.


She doesn't speak or have a face, but legends told about a vain woman that can be summoned. Her face was the key for one's destruction by distracting the enemy at a battle, no matter the gender. With a extreme pride and avarice, Cassiopeia wants all the power of the stars, and to control the Celestial Spirit World and became the Supreme Queen, but the only thing she had to do is to abdicat her body and seduction for magic.

Tears can be seen at the women "eyes" at every side of the stone, the only vestige of the humanity that the Queen will ever had.

Magic and Abilities

Primal Earth Magic: The planet is an entire massive ball of rock, solidified magma and carbonized parts of animals and animals that are part of the soil. With water, can be tied as the most abundant of the four classical elements: Earth. As the artificial body made of a sacred stone, Cassiopeia is very emphatic with the earth, controlling it with a few power.

  • Beautiful Madness: Dozens of spheres of earth and rock emerges from the ground at a decent speed, hiting with a strenght that is enough to break an entire building with a few of them.
  • Andromeda Sacrifice: A mountain of rock appears in front of the Celestial Spirit, protecting from attacks.
  • Gaia Reborn: A face of a old woman is detailed within the earth and plants, eating everything with it's mouth and putting at the underground, like a quicksand, but faster. When using it's magic, Cassiopeia red glyph shine at a brighter color and water drops from the circles and drawns, forcing a close after finishing the action.

Immense Magical Energy: The sacrifice that Cassiopeia make her gorgeous and good-looking body to become a prismatic rock, full of a huge power inside, that only needs the right "key" to unlock all the secrets of the Worlds. Even not having all that energy, she is still capable os having one of the greatest reserve of magic within the Spirits.

Immortality: As a Celestial Spirit, Sagittarius cannot die, unless he is somehow forced to stay in the Human World for too long without returning to the Celestial Spirit World once; something which would slowly deplete his life force, eventually resulting in his death.


Cassiopeia is based at Alilat, of Shin Megami series.

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