Once upon a time, in the breathtaking world of Celestia, inhabited by Celestial beings, a catastrophic event unfolded. Some ambitious mages sought unimaginable power and foolishly opened the gates to demons, hoping to harness their god-like magic. Unbeknownst to them, this act of desperation unleashed chaos, turning Celestia into a dark realm ruled by these malevolent invaders.
In the midst of this turmoil, Lumia, the celestial goddess of the sky, bestowed upon twelve chosen children, including the innocent Princess Cerina, the grace of the zodiacs. Born to an empress with divine blessings from her late parents, Cerina was once a prodigious young mage and a key figure in founding the prestigious Caelum Academy.
Tragically, at just ten years old, a higher-ranking demon took hold of her, forcing her adoptive mother, Arianna, to make the ultimate sacrifice to seal the fiend within her and strip her of her magical abilities. Consequently, Cerina lost all her memories and found herself alone in a monastery on Earth.
Eleven years later, a mysterious shadow creature nearly claimed her life during the night, but she was rescued by Raid, a fellow member of the Celestial Twelve. As her past began to resurface, Cerina embarked on a journey to save her friends and reclaim her lost powers.
In a desperate bid, she formed a bond with the demonic presence within, a bond that cursed her grace, now known as Black Zodiac. With this newfound connection, Cerina's path would intertwine with darkness, yet still strive for redemption and the restoration of her world.
