|School:||Shiraitodai High School|
|Debut:||Saki, round 169|
Playing Style / Abilities
National Tournament Arc
Rune first appears during a flashback of Teru's. She is playing on her phone when Teru and Sumire Hirose interrupt her. They invite her to join an improvised team for a match. Her team ends up winning the match and she is very excited. 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, Rune and the others seek out Teru and request something of her.