Minoru Mineta attends U.A. High School, eventually emerging as the Pro Hero Grape Juice. He possesses short stature, a distinctively round head, and dark purple hair styled into ball-shaped clumps like a mohawk. Post-graduation sees him taller yet still comparatively short, sporting faint stubble and a chubby but fit physique; he updates his hero costume with arm bands and communication headphones.
Personality-wise, Minoru exhibits extreme perversion and jealousy, frequently behaving inappropriately towards female classmates, which draws widespread disapproval. He displays significant cowardice under pressure, often crying or trying to flee danger. However, he demonstrates surprising intelligence, ranking 9th academically in Class 1-A. Despite his flaws, moments of genuine kindness emerge, such as comforting Ochaco Uraraka about Izuku Midoriya's recovery or apologizing to Mezo Shoji for past remarks. Witnessing hero deaths during the Paranormal Liberation War inflicts considerable trauma.
His character development includes a gradual increase in bravery. During the U.S.J. invasion, initial panic gives way to assisting Izuku and Tsuyu Asui by trapping villains with his Quirk. In the Final War, he acts selflessly, imploring All For One to take his Quirk instead of Fumikage Tokoyami's, risking his own hero career. His Quirk, Pop Off, generates sticky balls from his head that adhere to any surface except himself, enabling projectile attacks or mobility through bouncing. Overuse once caused scalp bleeding, though training mitigates this risk. His Ultimate Move, Grape Rush, immobilizes opponents.
Academically, Minoru excels in strategic Quirk application, devising traps during the U.A. Sports Festival and, alongside Hanta Sero, outmaneuvering Midnight by exploiting her personality during the Final Exams. After graduation, he first serves as Mt. Lady's sidekick before founding his own agency, achieving the rank of No. 108 Hero. Persistent perversion leads to controversy, however, including inappropriate messages to fans. Minoru's journey reflects a balance of comedic flaws and underdog heroism.