東郷 美森

Yuuna's best friend and fellow classmate and club member who lives next door to her and often prefers to be called by her family name. Mimori takes pride in her national heritage and is always ready to defend her country and protect its people. She had lost the use of her legs, along with some of her memories, allegedly due to a car accident.

Two years ago, Mimori was scouted by Taisha to become a Hero, and went under the name of Washio Sumi. However, after using her Mankai form, she got paralyzed and lost her memory.