Sayo

A girl living in Yuba's village with her parents and his older brother Shin, when she was still a child her parents would die after an epidemic and She and Shin would become orphans and would be raised with a little of help of all of their neighbours, due to them being born with capacity of using spirit arts the same as Ruri they would begin to learn them together with her from Yuba that would treat her almost as siblings and that way she would become Ruri's childhood friend. When Rio arrived to the village she would welcome and guide him towards Yuba's house along Ruri, at that moment she would fall for Rio at first sight and would become to adress him as Rio-sama because of Rio's polite speech and in her opinion how he had the same unreachable aura that the noble's have.