Shirogane Takeru's Physics Teacher
She teaches Takeru physics in his regular world and happens to be close friends with his homeroom teacher, Jinguuji Marimo. The two get along well enough that their friendship is pretty obvious to anyone paying attention.
Things are very different in the alternate world, though. There she holds a serious position as vice-commander of the Yokohama base. She's not the type to stay behind a desk—she gets directly involved in operations when needed, and she doesn't hesitate to make tough calls if it means accomplishing the mission. She's basically in charge of humanity's last shot at stopping the alien invasion through Alternative IV, which puts a lot of weight on her shoulders.
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