Ibuki Niijima is a third-year student at Yoba Academy who leads the sci-fi-themed DJ unit Photon Maiden as its producer and a core member, performing a blend of trance, techno, and dance music.

Naturally athletic, she has enjoyed sports since childhood and discovered a passion for dance and singing in junior high, leading her to attend a show production school. A considerate and supportive figure, she embodies her role as leader by consistently guiding her unit members.

Ibuki has light skin, blue-grey eyes, and grey hair pulled into a tight ponytail with parted front bangs. She stands 165 cm tall and weighs 48 kg. Her birthday is April 10, making her an Aries, and she has blood type A.

Proactive by nature, she balances a gentle, caring demeanor with energetic mentorship, often helping others improve their physical fitness and dance abilities. She excels at helping her peers develop their musical identities, most notably aiding Saki Izumo in exploring new colors linked to her synesthesia.

Despite her popularity with younger students and a dedicated school fan club, Ibuki remains modest, once deflecting compliments about her ability to attract attention.

Outside her unit, she manages the school track team and assists at her family's shrine as a miko. She possesses a large appetite, capable of competitive speed eating, though she often restrains herself due to the effort required to burn off the calories.

Her surname, Niijima (新島), combines "new" and "island." Her given name, Ibuki (衣舞紀), translates to "clothes," "dance," and "record." It also carries an alternate reading (息吹) meaning "breath" or "vigor," reflecting her athletic spirit.