Pop Step is a very smart and intellectual person; as she acts as the brains of the vigilantes. She has a habit of berating both Koichi and Knuckleduster when either of them act up in a way that she disapproves of. she also constantly denies having any involvement with them to the police, even though she clearly does.

Koichi notes that she has difficulty apologizing, likening her to a child. She appears to act like a more moderate Tsundere, mocking and insulting her allies despite clearly caring for Koichi. Despite this, she will still mock him for his attitudes and resignation to his situation, which she feel guilt for. Otherwise, particularly with Knuckleduster, she can be confrontational, and somewhat aggressive and territorial towards him. As an Idol, she appears to love singing and performing, despite not being particularly skilled or talented in either. She does her performances with lots of enthusiasm, and seems to take pride in her appearance when she performs. This vanity seems to extend to her looks at all times, including when she is not dressed up. She once told Koichi that if he called her civilian attire plain, she would kill him.