Hizashi Yamada, alias Present Mic, serves as a Pro Hero and English instructor at U.A. High School. Born July 7 (age 30), he stands 185 cm tall with blood type B. His punk-styled hero costume combines black leather, studded accents, and a directional speaker collar to channel his Quirk, complemented by "HAGE"-branded headphones—a nod to his initial bald character design. His innate Quirk, "Voice," grants destructive vocal amplification, evident from infancy when his first cry ruptured eardrums. Specialized gear focuses his sonic assaults, though subterranean environments reduce their efficacy. Combat techniques like "Loud Voice," "DJ Punch," and "Loud-Out Shout" enable targeted strikes or wide-area disruption. Childhood years in the U.S., influenced by American radio during homeschooling, shaped his bilingualism and career aspirations. Upon returning to Japan, cultural reintegration challenges solidified his triple ambition: hero, educator, and radio personality. At U.A., he forged a pivotal bond with Shota Aizawa (Eraser Head), coining the latter’s hero name. Their partnership balanced Hizashi’s vivacity against Aizawa’s reserve, cementing a互补dynamic crucial in missions. A second-year U.A. tragedy irrevocably marked him: a villain’s theft of his Quirk caused a building collapse, leading to classmate Oboro Shirakumo’s death. Lingering guilt fueled workaholic tendencies, while a boisterous exterior concealed emotional fragility—a contrast to Aizawa’s taciturn coping. As an educator, he enforces safety protocols, intervening during Bakugo and Uraraka’s Sports Festival clash and theorizing about a U.A. traitor. Though some students find his lessons tedious, his pedagogical dedication remains unwavering. Beyond teaching, he hosts "Put Your Hands Up Radio," a music program aligning with his exuberant public image. Privately, he battles entomophobia, exploited during a final exam where insects neutralized him, and avoids wooded areas favoring urban landscapes. Later events reveal Shirakumo’s corpse repurposed into Nomu Kurogiri, triggering Hizashi’s fury toward the perpetrators—a stark departure from his typical cheer. His operational reliability surfaces during crises like the USJ invasion and Tartarus prison mission. Statistically, his support-hero role emphasizes intelligence and teamwork over speed. Expanded narratives in *Vigilantes* and main-series arcs delve into his past bonds and trauma, enriching his initially comedic persona with psychological complexity.