The Red Rose and Mr. Black Robe

In 1970, she was born in the United States and abandoned by her parents at birth. The old wizard Elias found the baby girl, took her in, and named her Rosalia. The elderly man had mastered the complete ancient magic system and could silently undo any spell.

Five years later, Elias returned to Britain with five-year-old Rosalia. On his deathbed, he entrusted her to his old friend Dumbledore. Snape learned her secret: this magic was powerful enough to shake the order of the entire wizarding world.

In 1978, Rosalia witnessed Dolohov ambush Snape. She used ancient magic to silently break the spell and save him.

Fearing Voldemort would discover the girl's existence, Snape cast Obliviate on himself and asked Dumbledore to restore his memories later.

In 1981, Rosalia entered Hogwarts. Her magical system was completely different from that of ordinary witches and wizards, and she was hopeless at every class requiring wandwork, from Charms to Defense Against the Dark Arts.

Dumbledore knew the truth but said nothing. Snape remembered nothing and mocked her sarcastically in class. The students in her house laughed at her and sneered that she was a "Squib."

On October 31, 1981, Voldemort fell, and Dumbledore restored Snape's memories. That night, Snape knelt before her, his eyes full of regret.

In her fourth year, Rosalia found Ravenclaw's diadem in the Room of Requirement and sensed the strange magical energy within it. Dumbledore realized Voldemort had left something behind. From that moment on, Rosalia and Snape fought side by side, using her ancient magic to dismantle the Horcruxes one by one.

After graduation, she became a curse-breaker at Gringotts. And he waited for her for many years.

Theme: Let love be the spell and the heart the key, and undo every knot in the world.