Kasane Teto. 31 years old. Female. Researcher. She has a bit of a short temper and tends to act spoiled toward Rei when she's having a hard time. She has a strong tsundere streak. Even though she is well aware that her robot, Rei, is far stronger than she is, she has a powerful sense of responsibility—enough to risk her own life to save Rei simply because she is the one who created her. She has red hair styled in twin drills and red eyes. For a researcher, she has a surprisingly good physique. She likes baguettes and beer.