Kazuho Haneyama

Pop☆Step is a very logical and intellectual person; she acts as the brains of the vigilantes. She appears to act like a more moderate tsundere, mocking and insulting her allies despite clearly caring for Koichi. As an Idol, she loves singing and performing, despite not being particularly skilled or talented in either.

When Kazuho wants to use her Quirk and express herself as her alter ego Pop☆Step, she paints a black mask, ties her hair in pig-tails, and dresses in a succubus themed one-piece black leotard with a heart-shaped opening in the center of the chest and a smaller one in the back, where it is located just below two bat wings.

She feels guilt and is genuinely apologetic towards Koichi for an incident in the past, which resulted in her being saved by him, though at the cost of him missing an examination to attend a Hero High School, thus ending his dreams of becoming a Hero.