Sekijiro Kan, professionally known as the Blood Hero Vlad King, commands Class 1-B as their homeroom teacher at U.A. High School while actively combating villains as a licensed pro hero. Born on November 10 in Aomori Prefecture, he stands 194 cm tall at 31 years old with blood type B. Physically imposing, he possesses a tall, bulky, and muscular frame with lightly tanned skin. Distinctive scars mark his left cheek and the thick left side of his neck. His short, pale gray hair spikes upwards, save for a small clump hanging over his left forehead. Prominent lower canine teeth protrude visibly even with his mouth closed, and his eyes are small and thin. His hero costume features a dark red skin-tight suit revealing his pectorals through a low U-shaped collar, edged with thick black Y-shaped trim that mirrors designs on his shoulders. He wears white over-the-knee boots, thick forearm vambraces connected by a thin wire to his neck, red gloves, and a three-piece metallic belt dipping at the center, completing the look with an orange eye mask. His personality blends sternness with deep dedication to his students. Vlad King exhibits a fierce rivalry toward Class 1-A, yet genuinely values their safety and leverages them to motivate Class 1-B toward greater heights. A comical bias surfaces during events like the Joint Training Battle, where his commentary heavily favors his own class. He demonstrates loyalty to colleagues, shown through concern for Shota Aizawa during media appearances and regret over insufficiently supporting All Might during his tenure as Symbol of Peace. His long-standing friendship with Hound Dog (Ryo Inui) is noted, and he owns a dog. He reacts swiftly in crises, prioritizing student protection and efficient enemy neutralization. His abilities include enhanced physical strength and speed, demonstrated by lifting and pinning a clone of Dabi against a wall with force enough to crack it and reacting to threats within seconds. His Quirk, Blood Control, enables him to eject blood from a specialized gauntlet, manipulate it externally, solidify it to restrain opponents, and reabsorb it later. His unique physiology grants immunity to levels of blood loss that would normally be fatal. Official stat profiles vary: the Ultra Archive rates his Power, Speed, and Technique at 4/5 (B), and Intelligence and Cooperativeness at 3/5 (C). The Ultra Analysis rates Technique higher at 5/6 (A) and includes "Love For His Students" rated 5/6 (A). Within the narrative, Vlad King first appeared during the U.S.J. incident. Subsequent appearances include the U.A. Sports Festival and the Forest Training Camp, where he protected students during the League of Villains attack and immobilized a Dabi clone. He participated in the Provisional Hero License Exam, the Hideout Raid, and the Paranormal Liberation War. During the Joint Training Arc, he commentated on matches between Classes 1-A and 1-B. His total screen time across the series is recorded as 18 minutes and 11 seconds. Trivia notes indicate his name's kanji signifies "vessel," "red," and "love." His hero alias, sharp teeth, and blood powers evoke Vlad the Impaler and Count Dracula. He shares a birthday with Jube Namimaru, and "Kan" translates to "blood" in Turkish.