Lin Haruka, also known as Rin Haruka, is a half-Japanese, half-Chinese mountain rescue specialist in the Red Wings team of Machine Robo Rescue. Serving as both the primary pilot of the Wing-Liner transport and the team’s proxy Robo Master, she displays a unique absence of acrophobia, distinguishing her during training. She offers essential backup support during missions alongside Kai Kitazawa. After the introduction of the experimental Gura Gorros units, redesignated as the Gura Gorro Rescue Squad, she became their Robo Master. Privately, she conceals a personal affection for teammate Taiyou Ozora. After the main events, she was transferred to the Paris branch of the International Hyper Rescue organization.