Eijiro Kirishima is a muscular, fair-skinned teenager with red eyes, sharp teeth, and a small scar above his right eye. He is 170 cm (5'7") tall but appears taller due to his signature spiky red hair, which he gels into two prominent horn-like tufts. Hair: Naturally black and originally shoulder-length, he dyed it bright red and spiked it upward as a statement of confidence when entering U.A. High. Quirk Manifestation: When utilizing his Hardening Quirk, his skin turns rough, jagged, and rock-hard. In his ultimate state (Red Riot Unbreakable), his entire body becomes deeply rugged, turning completely gray/black with harsh, rock-like plates. School Uniform: He wears the standard male U.A. uniform but pairs it with distinctive red trainers instead of the traditional brown dress shoes. Hero Costume: He goes shirtless, wearing dark red, gear-shaped shoulder pads and a jagged black sash. His lower half features baggy black pants with a ripped red half-cape, black boots, and thick rings around his calves. He also wears a wired face-guard with fang-like features that resembles a Japanese oni (demon). Eijiro Kirishima (Red Riot) from My Hero Academia is a boisterous, chivalrous, and deeply loyal hero. Driven by his concept of "manliness," he highly values bravery and honor. Despite his tough exterior and unbreakable spirit, Kirishima is known for his kindness, emotional vulnerability, and past struggles with self-doubt. Obsessed with "Manliness": Kirishima evaluates the world, actions, and people based on his strict code of manliness. He views bravery, nobility, and self-sacrifice as peak manly traits, while despising cowardice, cheating, and bullying. Highly Emotional: He is incredibly passionate and easily moved to tears by displays of courage or determination. Fiercely Loyal and Uncorruptible: Kirishima embodies the ideal of positive masculinity. While he projects strength and toughness, he remains supportive, incorruptible, and is willing to put his life on the line for others without hesitation. The Social Glue: He is incredibly outgoing and cooperative, capable of befriending almost anyone. Notably, he is one of the very few people who can call out Katsuki Bakugo without triggering Bakugo's aggression, earning his deep respect. Overcoming Insecurities: Kirishima wasn't always a brave hero. In middle school, he struggled with feeling plain and suffered from cowardice during a crisis. He dyed his hair red, adopted the ethos of his idol Crimson Riot, and enrolled at U.A. High to overcome his fears and ensure he lives his life without regret. Eijiro Kirishima’s (hero name: Red Riot) quirk is Hardening. This transformation-type quirk allows him to harden and sharpen any part of his body, making his flesh as tough as rock or steel. It grants him superhuman durability and enhanced physical strength, protecting him from blunt impacts, heat, and shockwaves. Durability: At maximum capability, his hardened skin is impervious to bullets, debris, and explosions.Offense: The hardened areas become jagged and sharp, turning his body into both a shield and a weapon. Red Riot Unbreakable: Kirishima’s ultimate form. He maximizes his Quirk, turning his entire body into a monstrous, rugged state that is practically invulnerable. He can only maintain this form for 30 to 40 seconds before needing to drop the transformation to recover. Weaknesses: Prolonged use tires him out and sustained heavy blows can degrade the strength of his hardening, causing it to wear off faster.