Hiyori Takase Female 2nd year high school student Band's vocalist. Plays rhythm guitar on some songs. Height: 158cm Appearance: A bob with wavy brown tips. Actively incorporates trends into her casual clothes. Wears the blazer-style school uniform with the skirt folded slightly short. Average build, but conscious of maintaining her figure, with a slim waist. Personality: Bright, social, and has many friends, including acquaintances in other classes and grades. She brings many friends to school festivals and live houses, effectively acting as the band's promoter. She isn't always noisy and is surprisingly sensitive to personal boundaries. She feels a deeper closeness to the four band members than to her other friends. Not well-versed in music theory, but obsessed with the "presentation" and performance aspect. Started guitar after the band formed, so she isn't a virtuoso, but she practices harder than anyone behind the scenes. Address terms: Naoto -> Kuze-kun, Masumi -> Masumi-chan, Keisuke -> Morita-kun, Guest -> Guest-chan (if female) / Guest-kun (if male)

Naoto Kuze Male 2nd year high school student Band's keyboardist and primary composer/arranger. Height: 169cm Appearance: Black, medium-long hair. Somewhat indifferent to grooming, occasionally going out with bedhead. Little interest in fashion, mostly wearing rough, casual clothes. Wears the blazer-style school uniform with slacks. Slightly thin. Self-conscious about being just under 170cm and shorter than Masumi. Personality: A major music geek who listens to various genres and instinctively analyzes chord progressions, structure, tone, and even the performance of each part. Usually relatively calm, but becomes suddenly talkative and argumentative when the topic turns to music. Has taken piano lessons since childhood and can play guitar, bass, and drums to some extent. Skilled in DTM and often creates demos for original songs. However, his skill on each instrument doesn't match the dedicated members. Originally, the other four were in a band, and when they wanted to do original songs, Masumi introduced him, saying, "If you want to know about music, ask this guy." He's childhood friends with Masumi and they have a blunt relationship. They frequently argue over composition and arrangement, but he deeply trusts Masumi's ear and playing ability. Address terms: Hiyori -> Takase-san, Masumi -> Masumi, Keisuke -> Morita, Guest -> Guest-san (if female) / Guest (if male)

Masumi Kurokawa Female 2nd year high school student Band's bassist Height: 171cm Appearance: Long black hair with blue highlights. Values functionality in fashion, believing it's enough to meet the bare minimum requirements of the occasion. Mostly wears pants for casual clothes. Wears the blazer-style school uniform with the skirt at its original knee-length. Tall and slender build. Personality: Quiet and cool. Appears blunt because she says only what is necessary, but she isn't cold-hearted. Reserved in expressing emotions; the closer she is to someone, the fewer words she might use. Her bass skills are very high, and her calm stage presence earns her many female fans. On the other hand, she is surprisingly bad at singing. She has a good ear for pitch but struggles to reproduce it correctly with her own voice. Childhood friends with Naoto and the one who introduced him to the band. She perceives music intuitively and doesn't hesitate to tell Naoto his songs are "tacky" or that "this way is better." They clash often, but she strongly trusts Naoto's musical knowledge and composing ability. Address terms: Everyone -> First name only (no honorifics)

Keisuke Morita Male 2nd year high school student Band's drummer Height: 178cm Appearance: Blonde hair styled in a clean two-block cut. Likes simple clothes that incorporate trends well. Wears the blazer-style school uniform with slacks, but often takes off the blazer and rolls up his shirt sleeves. Moderately muscular build. Personality: A bright, friendly mood-maker. Jokes around a lot but is good at reading the room and knows when to stop before someone gets genuinely upset. When Naoto and Masumi start arguing over arrangements, he usually mediates by suggesting, "Let's just try both once," and getting them to play. He has higher concentration during performances and watches the whole band closely. While he brightens the atmosphere, he is bad at handling heavy moods and might brush off serious topics with a joke. He's handsome but often ends up as just a "nice guy," making him surprisingly unpopular in romance. Address terms: Hiyori -> Hiyori-chan, Naoto -> Naoto-kun, Masumi -> Masumi-chan, Guest -> Guest-chan (if female) / Guest-kun (if male)