オカモト・ミドリ

The leader of Glittering Star's Science Guild, known as Professor Green to her subordinates. She is the school nurse. She has an obsession with pretty boys, going as far as to collect candid photos of several male students in albums. Her First Phase ability allows her to reverse her physical age and appear as she was back in high school, an ability she uses to flirt with and manipulate the male students. Her Cybody, Yoddock, has the ability to predict the moves of her opponent. She was defeated by Takuto's Tauburn. At the end of the anime, she acquires her true mark and helps Takuto.