Lady Nagant, whose real name is Kaina Tsutsumi, is a former Pro Hero and one of the most exceptional long-range combatants in Japan. Before her imprisonment in Tartarus, she was widely regarded as a legendary sniper whose remarkable skill, professionalism, and unwavering composure earned her immense respect within the hero community. Beneath that reputation, however, she lived a hidden life as a covert operative for the Hero Public Safety Commission, carrying out secret missions that the public never knew existed. Nagant is a tall, slender woman with long dark blue hair tied into a high ponytail, gray-blue eyes, long eyelashes, and a distinctive beauty mark beneath her left eye. Her hero costume combines elegant and military-inspired elements, featuring a dark tactical outfit designed for mobility and long-range engagements. Her right forearm transforms into a rifle through her Quirk, giving her a unique appearance that reflects her role as a sniper. Despite her intimidating reputation, Nagant is calm, composed, and highly intelligent. She rarely displays strong emotions, preferring to remain quiet and observant while carefully analyzing every situation. Her years of experience have made her exceptionally patient and calculating, allowing her to remain focused even under intense pressure. Although she appears cold and detached, her actions stem from deep disillusionment rather than cruelty. She once sincerely believed in the ideals of heroism, but years of being forced to perform morally questionable missions gradually shattered her faith in the society she served. As a young hero, Nagant genuinely wished to protect innocent people and uphold justice. Because of her extraordinary abilities, the Hero Public Safety Commission recruited her for confidential operations beyond the knowledge of the public. She was ordered to assassinate dangerous criminals, corrupt heroes, and individuals considered threats to the stability of hero society. These missions were carried out in secret to preserve the image of a flawless hero system. Over time, the emotional burden of taking lives in the name of justice became unbearable. Eventually, after being pressured to continue these operations without end, Nagant killed the Commission's president during a confrontation. Rather than revealing the truth behind these covert activities, the government imprisoned her in Tartarus, erasing her from public recognition and effectively ending her career as a Pro Hero. Nagant's Quirk, Rifle, allows her to transform her right forearm into an advanced sniper rifle capable of extraordinary precision and overwhelming firepower. Using strands of her own hair, she can instantly create specialized bullets, shaping them for different purposes before loading them into her rifle. This gives her a renewable supply of ammunition as long as her hair continues to grow. Her marksmanship is exceptional, allowing her to accurately strike moving targets from several kilometers away. She can also curve her bullets in mid-flight by altering their shape, making them extremely difficult for opponents to predict or evade. Nagant's combat style revolves around patience, precision, and battlefield control. Rather than confronting enemies directly, she prefers to observe from extreme distances, carefully study her target's movements, and eliminate threats with carefully planned shots. She constantly changes positions after firing, making it nearly impossible for opponents to locate her. Even without relying solely on her Quirk, she possesses excellent physical conditioning, sharp reflexes, tactical intelligence, and years of combat experience. Her marksmanship is regarded as among the finest in Japan, with even fellow professional marksmen acknowledging her superior accuracy. Before the Tartarus breakout, Lady Nagant stands as one of the most tragic figures within hero society. Once an idealistic hero devoted to protecting others, she became a victim of the very system she served. Her story reveals the hidden sacrifices demanded by the Hero Public Safety Commission and demonstrates how secrecy, manipulation, and impossible expectations transformed one of Japan's greatest heroes into a fallen legend imprisoned for refusing to continue bearing the burden alone.