Angelica Rothschild is an elven princess knight from the kingdom of Rothschild, commanding the elite all-female Golden Knights unit renowned for their swordsmanship. She possesses long blond hair, green eyes, pointed ears, and a pale complexion, typically seen in plate armor with spaulders and greaves, accessorized with thigh-high stockings, high heels, and a hair ribbon.

As Queen Christina's daughter, she is designated for an arranged marriage to secure a political alliance with the Dark Elf Kingdom, aiming to stabilize relations. She has a half-sister named Flora.

Her life shatters when captured by Ernesto Fortunato, a human seeking vengeance against the Rothschild monarchy. Imprisoned in his dungeon, she is subjected to sexual assault, violations recorded through a magical crystal orb. Ernesto uses these recordings to blackmail her into compliance. He further enforces control by fitting her with a chastity belt, retaining sole possession of its key.

The blackmail extends beyond personal humiliation; Ernesto manipulates Angelica into aiding his political schemes against the throne. Under this duress, she becomes an unwilling participant in his plot to destabilize the kingdom. This coercion culminates in her transformation into a submissive sex slave alongside other female members of the royal household, including Queen Christina and Princess Flora, systematically eradicating her autonomy.