Saga Kayoko

Summary
Current mistress of the Saga family, mother of four, Hayate, two more unnamed sons and Komomo, she was born in a house with a history as long as Saga's and strongly related to production and training of anbus, the Karasuki kingdom's elite forces and specialized to work in the shadows, intelligence operations and secret missions, something similar to ninjas.

In her youth she worked with her husband Gouki as Ayame's bodyguard and later she would use her family's influence for silencing the voices that protested about Zen becoming Ayame's bodyguard like her and Gouki, then she would help Gouki and Ayame to teach Zen all the necessary education and etiquette that a royal guard needed.

After the ceasefire incident she and Gouki wanted to follow Zen and Ayame to the exile but at that time she was already pregnant of her first son Hayate and the journey became impossible for them, something that they always regreted, she acompanied her husband in the search of Rio for verifying his identity as Ayame's son and for revealing him the truth about his parents in that case, after that she and her husband would become the ones in charge of delivering to Rio his grandparents' summons and would escort him from the village until the capital, she and Gouki would offer themselves, ten anbus and Komomo for accompanying and helping Rio in his revenge journey but Rio would refuse it.

It was hinted that she and Gouki followed secretlly after Rio but it's still uncorfirmed if they really did it or not in the LN.

Relationship
Karasuki Ayame: her master and protegee.

Zen: her friend and coworker.

Saga Gouki: her husband.

Rio: she wishes to serve him now due to her loyalty to his mother.