Reiko Yanagi hails from Aichi Prefecture as a student in U.A. High School's Class 1-B. Her ghostly aesthetic manifests in pale skin, straight silver hair usually cut chin-length to obscure the left side of her face, and prominent dark circles under her eyes. She often holds her elbows close to her sides with hands dangling loosely, reminiscent of traditional spirit or zombie depictions. Her initial hero costume comprised a light periwinkle-blue kimono with a large hood, flared sleeves, navy-blue boots, and a face mask. Following U.A.'s timeskip, her appearance updated to feature longer, straighter hair and a new costume: a white kimono with black trim paired with collared black boots. Personality-wise, Yanagi presents as quiet and largely emotionless, frequently using cryptic or verbose phrasing that necessitates clarification by classmates. Her free time finds her engrossed in horror stories and online creepypasta. Despite her eerie demeanor, she exhibits timidity in high-tension situations, such as finding Neito Monoma intimidating. She assisted Itsuka Kendo as an attendant during the U.A. School Festival’s Beauty Pageant, hinting at an aptitude for fashion. Her Quirk, Poltergeist, grants telekinetic control over nearby objects, capped at approximately 137 pounds. She wields this for long-range combat by levitating and propelling objects as projectiles. In the Joint Training Battle, she executed tactical synergy with classmates Yui Kodai and Nirengeki Shoda: Kodai enlarged levitated objects to hinder evasion, while Shoda augmented their velocity and impact force using his Twin Impact Quirk. This coordination enabled concealed long-range assaults, though Yanagi was swiftly incapacitated by Ochaco Uraraka during the match. During the Final War arc, she aided in subduing Gigantomachia. Alongside Kodai, she supplied Mt. Lady with enlarged weapons via her Quirk, sustaining support until All For One overpowered their group. Eight years post-conflict, she graduated U.A. and became a licensed Pro Hero. Complementing her combat abilities, Yanagi possesses analytical skills; she identified Izuku Midoriya as a primary threat in the Joint Training due to his enhanced mobility, speed, and ranged capabilities. Her Ultra Analysis Book stats prioritize technique (5/6) over physical power (2/6) and speed (3/6). Trivia notes: Her hero alias "Emily" references the 2005 horror film *The Exorcism of Emily Rose*. "Yanagi" means "willow," while the katakana "レイ" (Rei) in her given name homophonically relates to "spirit" or "ghost" (霊). Born on February 11, she was among Class 1-B's youngest members during her debut.