Noriko is described by Kaede to have an “authorative” personality. Cool-headed, logical and serious, she is normally the voice of reason of the duo and keeps an air of poise most of the time, albeit a bit reserved. Noriko is also shown to be passionate about law, influencing her diplomatic nature. She is very considerate to her friends and always expresses her concern whenever they are troubled.

One who firmly stands by her opinion, she isn’t afraid to speak what’s on her mind but she carefully structures her words to be as sensitive as possible. She is also very intelligent; she puts her common sense, logic, and knowledge to good use, particularly when solving mysteries. 

Noriko is usually composed and rational, but there are rare times where she shows intense emotions. She will not hesitate to get angry and shout when she’s triggered, or berating some people. In spite of her serious nature, she does take the time to spend leisure with her friends and go out in order to relax. Additionally, she is not completely stoic and is capable of showing fluid emotions.