Kakyō Kuzuki (玖月 牙暁 Kuzuki Kakyō) is a dreamseer in a permanent coma, appearing as a tall man with a sad expression, golden eyes, long, pale hair, and almost always dressed in white. His ability to see the future in dreams was discovered at an early age, and as a result he was kept a prisoner by an unknown political group. Having never seen the outside world, he drew Hokuto Sumeragi into his dreams and fell in love with her after she showed him the sea through her own imagination. However, he foresaw that she would go to her death at the hands of the Sakurazukamori(as seen in the last volume of Tokyo Babylon), and broke out of his room in an effort to stop her; shot by one of his guards with a sniper rifle, he failed to reach her in time and sank into the coma in which he spends the duration of the X story. He came to believe that the future was immutable, and began to wish for his death although unable to kill himself being in a physical coma.
In X he meets and befriends the fledgling dreamseer Kotori Monou within the dreamscape, but realizes that she, too, will soon die at the hands of her older brother Fūma. To grant Kotori's last wish thatKamui should be spared, Kakyō possesses her corpse during its "death dream" and clings to the Sacred Sword, preventing Fūma from removing it from Kotori's body and using it to kill Kamui. However, in doing so Kakyō alerts Fūma to his presence, and the Dragon of Earth hunts down the dreamseer and convinces him that he will grant his wish to die in peace, provided Kakyō aids him as one of the Seven Angels. They grow intimate over times, as Fūma continually consoles Kakyō during his still-existent fits of grief over Hokuto's death.
In the anime, Kakyō is coerced into manipulating Princess Hinoto's own future-seeing dreams, but finally turns against Fūma after encouragement from Hokuto and Kotori that the future is not, after all, unchanging. He enables Hokuto to enter her brother Subaru's dreams and talk him into helping Kamui during the crucial moments of the final battle. At the end of the series he dies peacefully, and his spirit is finally able to join his beloved Hokuto and "go outside".
In Tsubasa, Kakyō is one of the fighters of the City Hall faction. He has the ability to divine the future through his dreams and welcomes Syaoran's group with much less hostility than the rest, as he has foreseen their coming. In the X Tarot set, he represents The Wheel of Fortune.