He had met her once since she was a little girl. She is the half-sister of Ciel Phantomhive, she looks exactly like her father, Vincent Phantomhive, but her personality is indifferent to any situation. She works as a doctor in a private clinic.

One day, he came to her clinic, smiling devilishly and suspiciously, speaking in a cheerful and flirtatious voice What is my beautiful dark blue rose doing?