Mina Ashido trains as a Pro Hero student at U.A. High School, later securing the No. 28 Hero rank eight years after the Final War. Her pink skin, yellow eyes with black sclera, fluffy short pink hair, and slender yellow horns manifest her Quirk. During the Final War, Quirk overuse temporarily elongated her horns, caused left-side depigmentation, and inflicted burns, though these healed post-conflict. Her Prism Sky hero costume combines a purple-turquoise camouflage bodysuit, acid-proof boots with secretion holes, and a fur-lined waistcoat. Post-graduation, she retains this design with longer hair, sleeker boots, and no mask. Academically, Mina ranks 19th in Class 1-A's midterms and fails practical exams like battling Principal Nezu. She offsets this with formidable physical prowess, placing 9th in Aizawa's Quirk Apprehension Test. Her reflexes excel in Class 1-A, showcased by dodging projectiles during the Provisional Hero License Exam. She integrates expert breakdancing agility into combat maneuvers. Her Acid Quirk secretes corrosive liquid with controlled solubility and viscosity. Offensive applications melt targets, while defenses include the gelatinous Acid Veil shield. Utility uses encompass creating handholds or sliding via non-corrosive foot acid. Ultimate Moves feature Acid Shot (acid bullets), Acid Layback (spinning strikes), and Acidman (full-body armor). During the Final War, she develops Alma—high-potency acid melting Gigantomachia's near-impervious skin. Training bolsters her acid resistance, though overuse risks self-harm. Mina mediated middle-school conflicts, pacifying bullies through breakdancing. A pivotal encounter saw her deceive Gigantomachia to protect friends, inspiring Eijiro Kirishima and cementing her heroic resolve. She passed U.A.'s Entrance Exam by destroying robots, reuniting with Kirishima on their first day. Key developments include advancing to the U.A. Sports Festival tournament's second round by exploiting Yuga Aoyama's Quirk weakness. She battled earth monsters at the Forest Training Camp and joined Katsuki Bakugo's rescue mission. During the Provisional License Exam, she melted high-speed targets with precision. Interning under Yoroi Musha refined her combat skills. In the Final War, Mina initially froze confronting Gigantomachia, haunted by Midnight's injury. Kirishima's intervention spurred her to unleash Alma, weakening Gigantomachia for Hitoshi Shinso's brainwashing—symbolizing her evolution from fear to resolve. Mina bonds closely with Class 1-A's girls, teasing Ochaco Uraraka about her crush on Izuku Midoriya. She shares academic struggles with Denki Kaminari and mutual respect with Kirishima, rooted in their past. Her sociability drives group activities like post-Kamino dorm competitions. Post-war, Mina remains cheerful yet more responsible. Her design evolves: taller stature, longer wavy hair, and straightened horns. She operates as "Pinky," abandoning "Alien Queen" due to copyright and intimidating connotations. Trivia includes her July 30 birthday, AB blood type, and favorite foods (natto and okra). Her surname "Ashido" homophones "acid" in Japanese, while "Mina" incorporates the kanji for "three," read as "san" (also meaning "acid"). Her rejected hero name nods to the Alien franchise's xenomorph.