|School||Hanasakigawa Girls' High School|
|Favorite Food||Spaghetti aglio e olio|
|Least Favorite Food||Raw seafood|
|Hobbies||Collecting hair accessories|
Saaya is the oldest of three children in her family; she has a younger brother named Jun, and a younger sister named Sana. Saaya's family own the Yamabuki Bakery, at which she helps out, even during the school term.
Saaya used to play in a girls' band when she was in middle school, but quit because she didn't want to burden her bandmates and her family due to an incident that happened in the past. But thanks to Kasumi, who never gave up on her, and her mother's support, she regained her passion for music and her desire to perform in a band, thus became the last member of Poppin'Party to join.
Saaya has slanted blue eyes and long, curly brown hair worn in a high ponytail, usually tied up in a ribbon. She has spread-out bangs and shoulder-length curled forelocks.
A kind, hardworking person who cares deeply about her friends, Saaya often lends an ear to Kasumi. She is generally level-headed and easygoing, and is like an 'older sister' to the other girls, always willing to help them out in hard times.
|Everybody's Sister||1★||Powerful||Score Up|
|Onstage||2★||Happy||Perfect Lock + Score Up|
|Important Moment||3★||Powerful||Life Recovery + Score Up|
|Matching Scrunchies||4★||Pure||Perfect Lock + Score Up|
|Buns For Luck||3★||Powerful||Perfect Lock + Score Up|
|A Bride of Only One Day||3★||Cool||Life Recovery + Score Up|
|A Kind Gift||2★||Powerful||Score Up|
|Dressing at Dusk||4★||Happy||Score Up|
|Merry Surprise!||4★||Cool||Life Dependent Score Up|
|Packed Full With Good Memories||3★||Happy||Score Up|
|Colorful Poppin’!||2★||Pure||Life Recovery + Score Up|
|GOGO WEGO!||2★||Cool||Life Recovery + Score Up|
|Saaya's Confession||3★||Happy||Life Dependent Score Up|