Haruka is very charismatic and has a calm and collected demeanor. She is very hardworking, to the point of being called a workaholic by Airi and having problems with taking breaks. Despite this, she is also humble, often downplaying her contributions to MORE MORE JUMP! or in helping Minori with various things. Haruka is also self-disciplined and has a strong sense of responsibility, often restricting her diet and sectioning out her training; she does have "cheat days" where she treats herself by buying every single flavor of food from a store she wants to go to.

