Rikka Inohana is a second-year student at Furin High School and president of the broadcasting club. She has long brown hair styled with braids resting on her collarbone and bangs framing her face, complemented by distinctive blue eyes. Her typical outfit is the standard Furin High School uniform—a white shirt, dark tie, and skirt—often layered with a brown jacket and black tights, though she wears various other attire throughout the series. Her personality blends a strong-willed, confident, and poised exterior with deeper emotional vulnerability revealed in key moments. Rikka maintains a cool, composed demeanor, interacting with a sharp wit that often manifests as teasing or challenging others, particularly Arisu Yamabuki. She sometimes acts rudely to mask her sensitive side. Rikka dreams of becoming a professional singer, a goal complicated by music industry pressures and creative challenges. Her musical journey began with a close partnership with her friend Aiko. They collaborated in a band during their earlier years, writing original music. Aiko later invited Rikka to form a duo, leading to an offer from Peace Records. The label scout, captivated solely by Rikka's vocal hook in their song "Evening Calm," offered her a solo deal, which she accepted with Aiko's encouragement. Creative differences between Rikka's artistic vision and the label's demands resulted in her being dropped. This experience caused her to abandon original songwriting, performing only cover songs until a reunion with Aiko at her solo concert in Karai Park allowed them to resolve their strained relationship. Rikka produces a CD featuring four original songs for street performances, priced at ¥500. She initially aims to sell 50 copies during a park performance but sells 20. She states her final song conveys "I love you" to a person she distanced herself from but still holds dear. Rikka frequents the "BigSong" karaoke venue and habitually wanders to the point of frequently getting lost. She experiences restless sleep, often tossing and turning. Academically, science is her strongest subject while English is her weakest. She owns a cat at home. Romantically, Rikka is the first person to kiss Arisu Yamabuki directly and the first to confess love to him, though her confessions often involve teasing or ambiguous statements that confuse him. She shares an appreciation for the defunct band "Hugg Notes" with others. Her band logo symbolically defies her past by featuring the crossed-out Peace Records logo. Rikka's musical repertoire includes "Evening Calm" from her duo with Aiko and her solo track "Ask of the Moon." She occasionally performs original songs at school events. Following her reconciliation with Aiko, her development shows a gradual return to creating original music alongside her continued pursuit of performance.