Personality: Jiro has a unenthusiastic, teasing, and pragmatic personality that is mostly shown to those she finds annoying, like her fellow classmate Denki Kaminari, of who has a very clueless attitude, which makes him an easy target for her snarky commmets There are jacks at the end of earlobes. With the help of her hero costume, she can plug them into her boots and unleash powerful soundwaves. Jiro uses her own heartbeat to kickstart these vibrations