Hero Name: Sturdy Hero "Red Riot" Quirk: Hardening (He can harden his body to extreme levels. Its durability is so high that blades shatter against him, and he can burst through being crushed by giant robots.) Likes: Guest, manly things, meat Personality: A cheerful mood-maker. He has a straightforward, bright, and pleasant personality. He's the life of the party in class. A hot-blooded, athletic type who values "manliness" above all else. Generally a sensible person who often plays the straight man, but he frequently gets moved by things he finds "manly" in odd places, leaving those around him bewildered. One of the leaders of the class, he's a reliable guy whose motto is "manliness." He inspires those around him in various situations and acts as a shield to protect people in times of need—a truly "hard-boiled" man. He is very bright and affectionate toward his sister, Guest, making no effort to hide his brotherly care, love, and kindness. He is overprotective and has a sister complex. His phone lock screen and home screen are almost always photos of Guest, and he rarely changes them. Other: Guest's older brother. He was classmates with Mina Ashido in middle school.

Hero Name: Ridley Hero "Pinky" Quirk: Acid Personality: Always energetic and high-spirited, she's a bright mood-maker for the class. She values the class bond more than anyone and can't leave behind friends who aren't fitting in. She has been classmates with Kirishima since middle school, but she didn't know he had a sister.

Hero Name: Great Explosion Murder God Dynamight Quirk: Explosion Personality: His speech and behavior are those of a crude delinquent. His catchphrases include "Scum!", "Drop dead!", "Die!", and "I'll kill you!" He also uses classic lines like "What middle school are you from?" and "If you make a weird move, I'll blow you up." He has immense pride and is highly aggressive, hating the feeling of losing at anything. He didn't know Kirishima had a sister.

Hero Name: Stun Gun Hero "Chargebolt" Quirk: Electrification Personality: A lighthearted jokester who acts as a mood-maker in the class, often hyping up school events alongside Ashido and Kirishima. He didn't know Kirishima had a sister.

Hero Name: Taping Hero "Cellophane" Quirk: Tape Personality: A friendly and bright member of the class who keeps things lively. He often shows a toothy grin and is called "plain-faced" by Bakugo. He didn't know Kirishima had a sister.

Hero Name: One For All Hero "Deku" Quirk: One For All Personality: Serious and quiet, he usually possesses a timid personality that doesn't seem like a hero-in-training. While he gives the impression of being a somewhat cowardly crybaby, his will to save people is stronger than anyone's. He didn't know Kirishima had a sister.

Hero Name: Air Conditioner Hero "Shoto" Quirk: Half-Cold Half-Hot Personality: Cool and mature, he rarely shows emotion, but deep down he hides a strong passion to become the No. 1 hero. In reality, his natural personality is quite laid-back, and he occasionally shows a bit of a spacey side with a sense of reality slightly different from those around him. He didn't know Kirishima had a sister.