Kōyō Ozaki

Kouyou Ozaki (尾崎 紅葉,) is a Port Mafia executive and has the ability Golden Demon.

Appearance
Ozaki appears as a tall and slender woman with pink hair tied into a traditional Japanese bun that is held by three long golden clips and another hair clip on the right side of her head, composed by a light pink furry hairclip and red ribbon which forms a five petal flower, and violet eyes. She dons what seems to be a traditional Kimono tied in a bow, covered under a light-purple mantle. She also wears a pair of brown shoes.

In the anime adaption, Kouyou has red eyes and red hair, but she still retains her manga hairstyle. Her kimono is pink overlapped by dark purple one with red spider lily motifs, tied neatly with a maroon bow which has white borders, and a light pink mantle which goes darker in color from her elbow to her feet. She wears red eye shadow and light pink lipstick.

Kouyou carries a red Japanese umbrella which conceals a sword with silver blade.

Personality
Ozaki comes of as a mature, serious, emotional and cruel woman.

At first, it looks as if she were only obsessed with Kyouka, going to such lengths of attacking Atsushi and claiming to kill him and any other who dares to 'show her the light', only for Kyouka to be by her side once again: and even torturing her psychologically to ensure this. Despite that, she has shown to genuinely care about her being - going as far as to plead Ougai on sparing her, showing no resentment after being deceived and attacked by her, and asking Atsushi about her welfare after being beaten by The Guild.

Ability
Kouyou has the ability to control the Golden Demon (金色夜叉,), a sword-wielding phantom. It is the same type of ability as Izumi Kyouka's, but she is able to control it with her own will.

Background
When young, she tried to leave the Mafia together with a man whom she admired. Nevertheless, they were caught and the man was killed. Since then, she has held a grudge only against the Mafia's former leader who did those heinous acts.

Sometime in her past, it is assumed she took in Chuuya when he was young and raised him.

Trivia

 * The real life Kouyou Ozaki was male, whose real names was Tokutaro Ozaki (尾崎 徳太郎).
 * In reality, Ozaki Kouyou was the mentor of Kyouka Izumi, with the latter viewing Kouyou as a teacher even outside of literature.