Mutsumi Urushibara

Mutsumi Urushibara (漆原睦 Urushibara Mutsumi), is the counselor of the school Katsuhira is attending. She's a mysterious woman who's almost always seen wearing a white coat.

Appearance
Mutsumi has blue eyes and jaw-length black hair. She has a beauty mark under her left eye as shown in the beginning of Episode 2. She usually wears a lab coat and dark black waist-high pants with a white blouse.

Personality
Initially, Mutsumi comes off as cold, somewhat sarcastic, and even frightening, such as when she pulls out a gun in front of two students in an arcade. In later episodes, she is shown to have caring and motherly qualities, such as in episode 9 when she becomes clearly distressed about the effects of the experiment on the Kiznaivers.

Noriko Sonozaki
Urushibara and Sonozaki have a mother-daughter-like relationship. Sonozaki tells Yamada in Episode 2 that Sonozaki is the only student precious to her, referring to her as "Nori-chan." She cares deeply about Noriko's well-being. She has been looking after Sonozaki ever since she was a child.

Kazunao Yamada
Kazunao and Mutsumi are both members of the Kizna Committee who work on the Kiznaiver experiment together, all the way back when the Kizna Committee had been experimenting on children. They seem to have been colleagues for a long time, and use nicknames without honorifics when referring to each other. However, towards the end of Episode 9, they begin arguing with each other on whether or not the Kiznaiver experiment should continue.

Trivia

 * Her Seiyuu shares the same surname as Noriko Sonozaki.