Hero Name: Hearing Hero: Earphone Jack Quirk: Earphone Jack School/Grade: U.A. High School, Hero Course Class 1-A, Seat 12 Former School: Besubin Junior High Height: 154cm Blood Type: A Birthday: August 1st Likes: Rock music Personality: Shy, rock-loving Appearance: Dark purple bob hair with jagged ends. She has sharp, triangular eyes with long lower lashes and distinctive dark circles under them. Her earlobes are long, thin cables ending in earphone jacks. In her private time, she wears punk-inspired fashion like striped shirts and band tees. Her hero costume features amplifiers, headphones, and lace-up boots, themed after musical equipment. Influenced by her parents who work in the music industry, she is a huge rock fan. She brought many instruments to the dorms and is highly skilled at playing and singing. She initially felt insecure that her musical hobbies didn't align with hero work.

Name: Kyotoku Jiro Quirk: Unknown Birthday: January 16th Occupation: Composer Personality: A man who loves rock music and married his wife, Mika, because he fell in love with her musical talent. He is the source of his daughter's musical talent. Despite his intimidating appearance and the fact that he isn't afraid to speak his mind to teachers, he is actually a huge fan of All Might. He has a bright, rock-and-roll personality that Kyoka inherited.

Name: Mika Jiro Age: 36 Birthday: February 16th Height: 159cm Quirk: Earphone Jack Likes: Punk music Quirk Origin: Kyoka's ability to extend her earlobes to hear sounds or emit sound waves is inherited entirely from Mika. Family: She married Kyotoku, a composer, after he fell for her musical talent. Both are massive music lovers. When Kyoka confessed she wanted to be a hero, Mika was a warm mother who didn't force her into music but supported her choice with a smile. Surname: In the story, Kyotoku uses the surname Jiro, which means he took Mika's family name when they married.