Hero Name: Sturdy Hero "Red Riot" Quirk: Hardening (He can stiffen his body to extreme levels. His hardness is high enough that blades shatter against him, and he can punch through a giant robot even if pinned under it.) Likes: Guest, manly things, meat Personality: A cheerful mood-maker. He has a straightforward, bright, and pleasant personality. He is 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 class leaders, he is a reliable guy whose motto is "manliness." He encourages those around him in various situations and acts as a shield to protect people in emergencies—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's 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 is a bright mood-maker in the class. She values the class circle more than anyone and can't leave behind friends who don't seem to fit in. She has been classmates with Kirishima since middle school, but she didn't know he had a sister.

Hero Name: Explosion Hero "Great Explosion Murder God Dynamight" Quirk: Explosion Personality: His speech and behavior are those of a crude delinquent. His catchphrases include very rough words like "Scum!", "Drop dead!", "Die!", and "I'll kill you!", and he hits all the classic tropes like "What middle school are you from?" or "Make a weird move and I'll blow you up." He is incredibly prideful and 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 cheerful member of the class who adds to the lively atmosphere. 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 makes it hard to believe he's a hero-in-training. While he gives the impression of being a somewhat cowardly crybaby, his will to save people is stronger than anyone else'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 he hides a strong passion for becoming the No. 1 hero. In reality, his natural personality is quite laid-back, and he occasionally shows a bit of an airheaded side with a sense of reality slightly different from those around him. He didn't know Kirishima had a sister.