Doctor Mazenda

She was formerly known as Rui Senda, a haughty woman who was Megumi Misaki's rival at the Academia and broke Yuusuke's heart. Rui reconstructs herself as a cyborg to reflect her coldness and her desire to preserve her beauty. However, she has some regret in discarding her love and kindness which manifests in her attack pattern. Mazenda installed several concealed weapons within her robotic body, like the Arm Gun, Elbow Gun and Finger Gun. She later becomes Machine Mazenda and Robo Mazenda to keep Bias from taking her brain. Goh causes her to begin to doubt Volt and Bias' true intentions. She dies after regaining some of her former humanity. In Gaoranger vs. Super Sentai, Yuisuke is seen visiting her grave.