|Full Name:||Saya Monou|
|Family:|| Kyougo Monou † (husband)|
Kotori Monou † (daughter)
Fuuma Monou (son)
Saya Monou (桃生 紗鵺 Monou Saya) is Kotori and Fūma's mother.
Saya have a petite figure and have long wavy hair; although her hair is less wavy than her daugther
In flashbacks of her family and Kamui, Saya was a cheerful person who always have a smile on her face. She cared for her children and her husband. She was close friend with Kamui's mother Tooru along with her husband Kyougo whom she knew since high school.
In reality, Saya was a more complicated person. From her ability as a Dream Seer, she knew right away that her relationship with Tooru will be special. Knowing that she would live and died for Tooru, Tooru was contended with this; she was very happy with this revelation. Saya learned that her daughter inherited her ability as a Dream Seer and her powers was stronger than her. Although her power was less weaker than her daughter, Saya was happy that her power was able to lead her to the person she loved.
Saya strongly believed she is destined to go to Hell for deceiving her husband and children for the sake of her wish. Despite what everyone would said if they learned the truth, Saya stated she is happy regardless. Although Tooru is devastated that she can't save Saya from her fate, Saya informed her that would be impossible; Saya declared that only she alone decide her fate.
In her last conversation with her husband, Saya was shocked to discover that Kyougo knew the truth about her feelings for Tooru. Kyougo knew the truth since the moment Saya first came to the shire. When Saya asked herself why did she married him, Kyougo tell her because he loved her; he have accepted that Saya will only loved Tooru regardless of the fact she can't never love him. Before dying, Saya apologized to her husband for her inability to return his feelings. Kyougo tell her that there is nothing to apologize for as she was a wonderful wife and mother to their children.
When Fuma and Kotori 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 married Kyōgo only 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.