TV series Saya Monou is Kotori and Fūma's mother. When they were children, she died giving birth to the first Sacred Sword, which burst forth from her body. This sword is intended to be wielded by Kamui; instead, it is stolen by Nataku and taken by Fūma. It is later revealed that Saya and Kyōgo's relationship was akin to a Lavender marriage: she married him to be at the Togakushi Shrine to take the place of her true love, Tōru Shirō, as the vessel of the Sacred Sword. Kyōgo knows that Saya never loved him romantically, but, regardless, continues to love her; by her part, Saya still had non-romantic affection for him, and her last words in the manga included an apology for not being able to return his feelings. In the TV series her relationship with Tōru is not acknowledged, and neither she nor Kyōgo appear in the X movie. in the TV series Kyōgo Monou Fūma and Kotori's father, is the resident priest of the Tokagushi Shrine. He marries his friend Saya even though he knew that she actually was in love with Tōru and was only marrying him so that she could protect Tōru; filled with remorse by this revelation, she weepingly apologizes to him for her deception, right before she dies in front of him, giving birth to the first Sacred Sword. To fulfill his own destiny, Kyōgo hides the Sacred Sword in the shrine as its sacred object; he swears to protect it with his life and is killed by Nataku as a result. Right before he dies, he reveals to Fūma his destiny as Kamui's twin star. in the TV series Hokuto Sumeragi is Subaru's twin sister who was killed by the Sakurazukamori at the end of Tokyo Babylon. While she was still alive, Hokuto became friends with Kakyō after the dreamgazer drew her into his dreams. Being the first person he ever really met, she left a lasting impression on Kakyō. Hokuto is the reason he wants to die—so he can join her in the afterlife. In the manga she appears in his reminiscence, while towards the end of the anime she actually appears to him as a ghost and persuades him to turn against Fūma in order to attempt to change the future. Kakyō enables her to cross into her brother's dreams, where she urges Subaru to rise from his catatonia and