Twelve Stars-Once upon a time, in the Astera Galaxy, twelve sisters were born to protect their system. They grew up and embraced their powers, each becoming senshi as they were destined to be, and fought together in sisterhood. But as it always happened, light called out to darkness, and for a galaxy this bright, it didn’t take too long to attract the presence of Chaos. The sisters fought with all their might, but despite their immense power when all twelve stood together, it wasn’t enough. Great destruction occurred and the sisters ended up in a near-death state after exhausting all their powers. They also got scattered all around the universe in the aftermath of the great explosion that destroyed their galaxy. Their bodies were preserved by their Sailor Crystals, still intact if depleted to its absolute minimum energy limit. Their leftover power was just enough to keep them barely alive. Slowly, over hundreds of years, it repaired their body as they slumbered in a deep sleep.

Centuries later, they slowly began to awaken. Each was alone in their own corner of the universe, not knowing who they were or anything at all. Until a woman came to them one by one, guiding them. A woman by the name of Queen Stella, who told them that they were guardian senshi destined to protect the world. She reminded them who they were and gathered all twelve, reuniting the sisters. She promised that together they were stronger, that they had yet to achieve their true potential.

The twelve sisters went with her to her kingdom, and started their new lives. But the story did not end here. In fact, it had just begun…