Mina Ashido, a vibrant student in U.A. High School’s Class 1-A, trains to become a professional hero. Her striking pink skin, short fluffy hair, and curved yellow horns reflect her Quirk, Acid, enabling her to secrete corrosive liquid. Her hero costume, Prism Sky, features a purple-and-turquoise camouflage bodysuit, acid-resistant boots with secretion holes, and a fur-lined waistcoat. Post-graduation upgrades include sleeker boots and elongated fur accents. During the Final War, excessive Quirk use temporarily bleaches her left side and straightens her horns, though these effects fade afterward. Academically challenged, Mina ranks 19th in midterms, requiring remedial help. Despite a low intelligence rating, her athleticism earns her 9th place in the Quirk Apprehension Test. Dance sharpens her agility, letting her evade rapid assaults and mentor peers in movement tactics. Her Quirk mastery spans melting near-indestructible armor to crafting acidic shields, adjusting viscosity for offense or defense. At Mustafa Private Middle School, she bravely faced bullies and later deceived Gigantomachia to shield allies, inspiring Eijiro Kirishima’s heroic resolve. She earned U.A.’s hero course spot by demolishing robots in the entrance exam. Key growth moments include reaching the U.A. Sports Festival tournament’s second round and interning under Pro Hero Yoroi Musha to polish combat skills. Cheerful and socially adept, Mina mediates conflicts through dance and uplifts classmates like Mashirao Ojiro during competitions. Though courageous—lying to Gigantomachia during the Paranormal Liberation War—she later buckles under fear’s weight. Romantically curious, she playfully exaggerates peers’ relationships, notably Ochaco Uraraka and Izuku Midoriya’s dynamic. Her Quirk evolves with techniques like Acid Veil for defense and Acidman: Alma for offense. Overcoming trauma from Gigantomachia, she breaches his armor in the Final War, driven by guilt over Midnight’s death. Post-graduation, she ranks as the No. 28 Pro Hero, fostering a friendly rivalry with Kirishima while refining her abilities. Their bond remains platonic, anchored in shared middle-school experiences. Notable battles include partnering with Minoru Mineta in the Joint Training Battle, merging Quirks for tactical strikes, and aiding Fumikage Tokoyami against Slice on Nabu Island. Events like the Provisional Hero License Exam and Forest Training Camp hone her skills, though early failures—such as losing to Nezu in finals—expose initial overreliance on her Quirk.