Settings and Characters (Main, Supporting, and Reccuring)

Settings:

Urban and Suburban Tokyo

Modern-day Japan (as of 2026 onwards)

Characters:

Main Characters:

Jiro Arashi

Age: 17

Born: April 3, 2009

Height: 182 cm / 6'0"

Jiro is a tall, lean, and naturally composed student with brown wavy hair and blue eyes. His youthful appearance made him handsome and seemed approachable, while his quiet and observant nature often gave him an air of mystery.

Chill, mature, and rarely one to seek attention, Jiro tends to observe situations before deciding how to respond. He isn't the type to reveal everything about himself at once—there's still plenty more to discover about him as the story progresses.

Yuri Yoshima

Age: 16

Born: January 10, 2010

Height: 163 cm / 5'4"

Yuri is a petite, elegant, and charismatic girl known for her light-blue, wavy, waist-length flowing hair and crystal-blue eyes.

Energetic without being overwhelming, she carries herself with confidence while remaining kind, sociable, and approachable. Her natural charm and presence around music have earned her the affectionate reputation of being the “Musical Muse.”

Despite her graceful image, Yuri has a lively personality that makes her presence difficult to overlook.

Supporting Characters

Ren Kisaragi

Age: 17

Born: August 27, 2009

Height: 183 cm / 6'0"

Ren is a tall, lean student with straight black hair, grey eyes, and eyeglasses.

Mature and down-to-earth, he is well-behaved, friendly, and generally easy to get along with. His calm demeanor gives him a dependable presence among his peers, while his appearance gives him a quietly handsome look.

Daiki Moriyama

Age: 16

Born: December 24, 2009

Height: 180 cm / 5'11"

Daiki stands out immediately thanks to his turquoise-green curly hair and matching eyes, accompanied by a rugged, mature-looking face.

Tall, lean, energetic, and extremely extroverted, Daiki is the kind of person who can turn an unfamiliar environment into a friendly one almost instantly. He's hyper, funny, down-to-earth, and exceptionally approachable.

Even people who have just met him can quickly feel comfortable around him.

Hanna Arashi

Age: 16

Born: March 7, 2010

Height: 169 cm / 5'6"

Hanna is Jiro's younger sister, recognizable by her long, brown, wavy hair and blue eyes.

Tall and slim with a graceful presence, she combines an approachable personality with natural charm. Her warm demeanor makes her easy to talk to, while her own individuality ensures that she's more than simply “Jiro's little sister.”

Reimu Hoshino

Age: 16

Born: November 27, 2009

Height: 171 cm / 5'7"

Reimu has a distinctive appearance featuring pink wavy hair with white-faded ends, a wolf cut, and pink eyes.

Her semi-gothic aesthetic and mature-looking appearance can initially make her seem reserved or intimidating. In reality, Reimu is an extrovert with a charismatic and approachable personality.

Chill, confident, and socially comfortable, she has a distinctive presence that makes her stand out without needing to demand attention.

Miyara Tanaka

Age: 17

Born: May 15, 2009

Height: 160 cm / 5'3"

Miyara is a petite student with short purple bobbed hair and green eyes.

Mature, chill, and down-to-earth, she carries a calm and dependable presence that gives off strong “older-sister” vibes. She's composed without being distant and has a quietly confident charm of her own.

Her personality may be more understated than some of the louder characters around her, but that doesn't make her any less memorable.

Recurring Characters:

Daigo Arashi

Age: 44

Born: March 29, 1982

Height: 186 cm / 6'1"

Daigo is a calm and youthful-looking man with brown wavy hair styled into a neck-length mullet and blue eyes.

Caring, considerate, open-minded, wise, and gentle, he is a dependable father who gives his children room to grow while still looking out for them. Despite his wealth and success, Daigo remains remarkably down-to-earth.

He's also an extrovert with a wide circle of friends, particularly among his family, business partners, and colleagues. His trendy appearance and naturally youthful charm make him stand out, but his greatest strength is the warmth he brings to the people around him.

He shares a strong resemblance to Jiro during his teens, a youthful and handsome face just like Jiro.

Daigo is the father of Jyo, Jiro, Hanna, and Himari.

Sora Arashi

Age: 43

Born: April 1, 1983

Height: 168 cm / 5'6"

Sora has brown, flowing straight hair in a lob cut and brown eyes, giving her an elegant and composed appearance.

Beautiful, charming, caring, and responsible, she is an authoritative yet loving mother who knows when to be firm and when to give her children freedom.

Sora is observant and gentle, with a slightly strict side that comes from wanting the best for her family. Despite her strong presence, she values independence and allows her children to make their own choices.

Jyo Arashi

Age: 20

Born: June 14, 2006

Height: 192 cm / 6'4"

Jyo is the tallest member of the Arashi siblings, with brown-and-black two-block hair and striking heterochromia—one blue eye and one brown eye.

Calm, easygoing, wise, and highly sociable, Jyo has the kind of personality that makes him easy to get along with. As the eldest brother, he is fun-loving and energetic while still being someone his younger siblings can rely on.

Outside of music, Jyo is athletic and enjoys basketball and football. He's also a highly skilled drummer, combining his natural energy with a strong sense of rhythm.

Himari Arashi

Age: 15

Born: February 14, 2011

Height: 165 cm / 5'5"

Himari has straight, brown, shoulder-length bobbed hair and brown eyes.

Reserved but friendly, she is observant, considerate, and notably mature for her age. Although she's the youngest of the Arashi siblings, she often carries herself with a quiet composure.

Her calm personality can make her seem difficult to approach at first, but she is kind once people get to know her. She is also a capable bassist with a natural feel for the instrument.

Shinzo Yoshima

Age: 43

Born: September 9, 1982

Height: 178 cm / 5'10"

Shinzo has grey wavy hair and grey eyes, giving him a mature and composed appearance.

Permissive but responsible, Shinzo is a supportive father who prefers to guide his children rather than restrict them. Calm, easygoing, and straightforward, he is someone who values honesty and personal freedom.

He has a strong passion for science and previously worked in astronomy before pursuing a career in technology. His scientific interests remain an important part of his character.

Emi Yoshima

Age: 43

Born: December 5, 1982

Height: 155 cm / 5'1"

Emi has light-blue flowing wavy hair, crystal-blue eyes, and eyeglasses, giving her a graceful and distinctive appearance.

Warm, caring, wise, and considerate, Emi is a loving mother who is deeply devoted to her family. She is friendly and highly sociable, with an easygoing personality that makes her comfortable to be around.

As a classical pianist and violinist, she has always been an important part of her life. Her elegant appearance and gentle personality also explain where Yuri inherited much of her distinctive charm and resemblance.

Keisuke Yoshima

Age: 20

Born: July 30, 2006

Height: 179 cm / 5'11"

Keisuke has messy light-blue hair and grey eyes, giving him a relaxed but naturally handsome appearance.

He can be slightly strict and responsible, particularly when it comes to his younger sisters, but his overall personality is cool and dependable. Beneath his serious side, he's an older brother who enjoys spoiling the people he cares about.

Among the Yoshima siblings, Keisuke is particularly known for his academic achievements, which influenced both Marisa and Yuri.

Marisa Yoshima

Age: 18

Born: October 27, 2008

Height: 162 cm / 5'4"

Marisa has grey, wavy U-cut hair and crystal-blue eyes.

As the middle child, she has a calm and cheerful personality with an ambivert nature. She's gentle, neat, and composed, with an almost cat-like manner that makes her presence feel quiet but distinctive.

Marisa has an extraordinary charm of her own, balancing the personalities of those around her with her own individuality.

Kang Ju-ri

Age: 16

Born: December 25, 2009

Height: 166 cm / 5'5"

Ju-ri is a Korean-Japanese student with orange hair and green eyes.

Calm, friendly, lovely, and slightly reserved, she has a gentle personality that makes her easy to appreciate once she opens up.

As a member of the Arts Club, Ju-ri has her own interests and creative side outside the main circle of characters. She also shares a particularly close connection with Daiki, adding another familiar face to the growing group around him.

Jin Kurosawa

Age: 16

Born: March 3, 2010

Height: 173 cm / 5'8"

Jin is a handsome and approachable student with a naturally youthful appearance and an easygoing presence.

A member of the Acting Club, Jin has an expressive side that fits naturally with performing. He's friendly, cheerful, and sociable, with a personality that makes him easy to approach.

Despite his good looks and confident presence, Jin has a softer and more playful side—especially around Miyara, his childhood friend and girlfriend. Around his older girlfriend, his cool image tends to disappear pretty quickly, revealing a lovable “golden retriever” personality.

Jin and Miyara have known each other since childhood, giving their relationship a comfortable familiarity that comes from growing up together. Their dynamic adds a lighthearted presence to the wider circle of recurring characters.