Himari Azuma is an 18-year-old demon hunter and Vice-Captain of the Seventh Unit in the Anti-Demon Corps. Born on August 28 into the prestigious Azuma family, she faced constant comparison to her accomplished older sisters, earning the label "black sheep" due to perceived underachievement. A childhood marked by familial pressure and feelings of inadequacy stemmed from her mother's strict expectations, the open mockery of her sister Yachiho, and bullying by her cousin Homare. Her personality blends intense pride with a quick temper, often reacting emotionally to challenges. Driven by a deep desire for validation, particularly from her idol Kyouka Uzen, she trains relentlessly to overcome her reputation as a failure. Initially distrustful and hostile towards men, she treated Yuuki Wakura as inferior. Shared combat experiences transformed this hostility into mutual respect, though she remained prone to accidentally attacking him during compromising situations. Himari's primary ability, "Learning" (Seiun no Kokorozashi), allows her to copy others' powers by studying them and registering targets on her smartphone. Copied abilities manifest weaker than the originals, and she could initially use only one at a time. Key replicated powers include: "Bang Bang Bang" from Saki Tokoyama, transforming body parts into weapons like machine guns, shields, or chainsaws; "Slave: Whirlwind" from Kyouka Uzen, enhancing Yuuki Wakura's speed at the cost of strength, requiring post-battle rewards like kisses; "Golden Hour" from Yachiho, enabling brief time stoppage; and "Star Frost" from Kiriha, providing life-draining healing. During the emotionally intense Azuma Banquet, an awakening triggered by her defiance allowed her simultaneous use of multiple abilities, including wind control ("Nightstorm") and space manipulation ("Amenomitori"), to combat her mother. Her rigorous training grants martial arts proficiency and enhanced strength. She also demonstrates tactical driving skills navigating Mato's hazardous terrain. Character development focuses on overcoming familial disdain. Partnering with Yuuki against Yachiho in a unit exchange battle fostered reconciliation with her sister. The Azuma Banquet became a turning point; publicly defying her mother and demonstrating heightened power shifted family perceptions. Subsequent growth saw her mastering enhanced abilities like "Slave: Whirlwind Heaven" and healing teammates during critical missions, solidifying her role as a reliable combatant. Her relationships reflect this journey: Kyouka Uzen remains an inspirational figure; Yuuki Wakura transitioned from distrusted outsider to respected comrade; and her family dynamics evolved from antagonism to tentative acceptance following her demonstrations of strength.