Kurohime

Princess Black is a long-time guest of the Shimazu House. In fact, she has been there for many generations, never aging. Rumor has it that her everlasting youth is the result of a curse.

She is greatly admired by the Shimazu brothers, who would do anything for her. However, her feelings for them is more maternal than romantic.

In reality, she is the daughter of the demon Xavier, which is why she never ages. During Xavier's last revival, he raped many women, and Black was the only child that was born. She has the ability to break any seals. However, she has a gentle heart, and dislikes her father's cruelty, which is why she never attempted to free her father for the past hundreds of years.