Misogigahara Towa

Owns the Magical Heart "Serendibite"

The discoverer of the "Magical Heart," which became the key to saving humanity, and the founder of the academy city, lost both her beloved sister, with whom she had a close relationship, and her mother due to the ambitions of a single traitor. Since then, she has sworn revenge and infiltrated the academy city, "Seika Renaissance Polis Fukkou (commonly known as Fukkou Academy)," disguised as a transfer student. Holding the Magical Heart left behind by her sister, she transforms into the Black Jewel Princess.

Wielding the whip "Barthory," enveloped in jet-black flames, she fights with unmatched skill and versatility.

Having lived with the word "revenge" engraved in her heart, she strictly disciplines herself. To survive, she has had to become highly suspicious of others. However, her true nature is kind-hearted and somewhat naive.

She meets Shizune Daonault (Dee), who looks exactly like her deceased sister, and as they bond, she begins to love her. This love ultimately brings further tragedy to Towa...