|School:||Shiraitodai High School|
|Grade:||Alumna (2nd year during Teru's 1st year in high school)|
|Debut:||Saki, round 169|
Playing Style / Abilities
National Tournament Arc
Natsuki's first appears during a flashback of Teru's. While being invited to join the improvised team, she tells the girls that she doesn't really mind joining. Her team ends up winning the match thanks to Teru's instruction.
After Teru walk out, Reika says that they must be close. However the girls tell her that they aren't and that it was simple advice that allowed them to win. Sometime later in the cafeteria, Natsuki and the others seek out Teru and request something of her.They ask her to help coach the other girls because they can't be satisfied if they get chosen to represent the school that way.
Later, it is revealed all the girls have gotten stronger thanks to Teru but the original girls remain very strong. Natsuki is playing with Shiori and quickly hits her with a ron. She is then gives advice to the girl.