Fubuki, the B-Class Rank 1 hero known as Blizzard of Hell, commands the Blizzard Group faction. As an esper, she forms one half of the Psychic Sisters alongside her older sibling, Tatsumaki. Witnessing Tatsumaki's abduction by the Tsukuyomi research group at age two planted deep-seated fear in Fubuki. Her own psychic powers awakened at five when she observed Tatsumaki violently confronting Tsukuyomi members. During high school, Fubuki co-founded the "Society for Supernatural Research" with her close friend Psykos, serving as president while Psykos acted as vice president. The group pursued covert world domination until Fubuki, at seventeen, opposed Psykos' plan to eradicate humanity. Viewing Psykos as an enemy, Fubuki sealed her friend's powers.
Strategically maintaining her B-Class position despite A-Class capabilities, Fubuki navigates A-Class Rank 1 hero Sweet Mask's gatekeeping of S-Class promotions, her ambition to dominate B-Class to shield her faction, and personal insecurities about surpassing Tatsumaki. She aggressively recruits powerful heroes like Saitama into the Blizzard Group, initially attempting forced allegiance through combat. After witnessing Saitama's invincibility against Speed-o'-Sound Sonic, she abandons coercion for collaboration.
Fubuki sports a chin-length dark green bob and light green eyes. Her elegant attire—a form-fitting green dress, white fur coat, thigh-high boots, and pearl necklaces—reflects her conviction that "clothes define the person."
Outwardly confident and ambitious, Fubuki harbors profound insecurity and an inferiority complex fueled by Tatsumaki's overwhelming power. She practices "newbie crushing" to eliminate rivals and secure her B-Class dominance. Exposure to Saitama catalyzes significant growth: she gradually overcomes comparisons with her sister, prioritizes mentoring her faction, and demonstrates selflessness. This includes shielding allies from Dragon-level threats like Overgrown Rover and healing critically injured heroes like Genos and Tanktop Master despite physical tolls. During the Monster Association arc, she twice confronts the brainwashing monster Do-S, overcoming mental control through sheer willpower to achieve victory.
Fubuki's esper abilities favor versatility over raw power. Her offensive techniques include Hell Storm (debris tornado), Psychic Binding (immobilization), and Psychic Strike (telekinetic knockout). Defensive and supportive skills encompass Psychic Barriers (blocking Dragon-level energy blasts), Psychic Whirlwind (redirecting/jamming esper powers), and levitation-based flight. Healing capabilities feature Organic Restoration (repairing Genos' overheating cyborg body), Energy Suppression (stabilizing Genos' core), and Organic-Body Enhancement (boosting allies' physical attributes). She also possesses telepathy, tactical analytical intellect, and resistance to mind manipulation.
Fubuki's character arc shifts from seeking validation through control to embracing authentic heroism. She risks her life protecting Bang and Bomb from Overgrown Rover, expresses genuine concern for allies like Genos, and acknowledges her desire to support rather than surpass Tatsumaki. Her journey embodies overcoming insecurity through self-acceptance and discovering strength in teamwork over isolation.