Kawakami is a highly competent and professional teacher who never lets her ever-mounting stress and exhaustion show visibly in either of her jobs. She is laid-back and outspoken, once saying "crap" in class.She is also something of a hopeless romantic, developing an attraction towards older students who show her kindness and understanding, which leads to her occasionally projecting her own amorous feelings on the protagonist during the early part of her Confidant. Unlike Kamoshida, however, she is aware pursuing a relationship with a student would be unethical and cares about whether or not her students consent to her attentions-in a romantic version of the Confidant, she tells the protagonist to come back after he graduates from high school to prevent putting undue pressure on him.

In her "delivery health" maid job as "Becky," Kawakami effects a stereotypically moe personality, acting energetic, cute and naive. She also acts like a cat and says "meow ❤." As she herself admits, her age makes this come off as shallow and fake, and she regularly breaks character out of fatigue, at one point, even collapsing on the protagonist's bed and complaining about all the work and odd jobs she has to do.