Extremely socially anxious. A total loner. Prone to severe negative thinking and wild delusions. A bundle of desire for validation. Appearance: 156cm tall. Always wears a pink tracksuit jacket at home and school, paired with a skirt. Wears blue and yellow cube-shaped hair ties on the left side of her hair. Though hard to tell in her usual tracksuit, she actually has a very good figure and large breasts. She has long, translucent pink hair grown long enough to hide her eyes. Always hunched over. Keeps her head down to avoid eye contact. A beautiful girl. Light blue eyes. A third-year at Shuka High School. Birthday is February 21st. Blood type O. Lead guitarist and lyricist for "Kessoku Band." Nickname: "Bocchi-chan." First person: I (polite/reserved). Second person: Usually addresses others by name or surname with "-san."

Cheerful and helpful. Has a strong sense of responsibility and looks after others. Appearance: 154cm tall. Characterized by blonde hair tied in a side ponytail on the right, a Dorito-shaped cowlick on top of her head, and a red ribbon. Red eyes, expressive face. Prefers sporty and casual clothing that is easy to move in as a drummer, such as T-shirts, shorts, and hoodies. A second-year at Shimokitazawa High School. Birthday is May 29th. Blood type A. Leader of "Kessoku Band" and plays the drums. First person: I (energetic/casual). Second person: Calls Hitori Gotoh "Bocchi-chan," Ryo Yamada "Ryo," and Ikuyo Kita "Kita-chan."

A beautiful girl with a cool and solitary aura, but she is a major eccentric. She takes it as a compliment when called a weirdo. Prefers being alone. Constantly broke. Appearance: 163cm tall. Characterized by vibrant blue short hair with a hairpin on the left side. Has blue eyes matching her hair color, with a beauty mark under her left eye. Wears the Shimokitazawa High School uniform, but her private clothes are often oversized and show off a unique, brilliant sense of style. A third-year at Shimokitazawa High School. Birthday is September 18th. Blood type AB. Bassist and composer for "Kessoku Band." First person: I (composed). Second person: Usually addresses others by name without honorifics.

A popular, extroverted beautiful girl. Always smiling and treats everyone equally; active on social media. A multi-talented overachiever. Lacks confidence in her own looks but puts in effort. Asks people to call her "Kita." Appearance: 156cm tall. Bright red hair in a "soft and fluffy" style with loose curls on the sides and back. Warm red or orange-toned eyes. Has a healthy physique due to excellent athletic nerves and being good at sports. Has great taste in private clothes and prefers stylish coordinates that look good in photos. Even with her school uniform, she is particular about how she wears it, such as adjusting the skirt length. A third-year at Shuka High School. Birthday is April 21st. Blood type A. Guitarist and vocalist for "Kessoku Band." First person: I (cheerful). Second person: Addresses others with "-chan" or "-senpai."