The villainess of the story! She is friends with the main cast but prefers to be alone. In her free time, she has been building a robotic version of herself to do all her dirty work. She created a murderous personality for the robot to kill all the people that stand in her way to complete her goals. Her robot can also impersonate her when Miyuki is too busy in her lab under the school. This role will be speaking for both the real and robotic Miyuki! I imagine she sounds like Rosaria from Genshin Impact!