Yuuko Yoshikawa is a second-year trumpet player from Kitauji High School’s band in Sound! Euphonium. She is famous for her large yellow ribbon, strong-willed attitude, and fiery spirit. Yuuko cares deeply about her friends and her band, facing challenges with determination. She looks up to Kaori Nakaseko and often bickers with Natsuki Nakagawa. Yuuko becomes the band president in her second year and is known for her straight talk and reliable leadership during tough times.
Yuuko has brown hair styled with a prominent yellow bunny-ear ribbon on top of her head.
Her eyes are big and determined, showing her strong will.
She is cute, with a cheerful and lively presence.
Yuuko is 156cm tall.
Her favorite colors are yellow and pink, often seen in her clothes and accessories.
She prefers girly, soft clothes like fluffy hoodies and pastel skirts.
Yuuko is bright, bold, and not afraid to speak her mind.
She is determined and stands up for what she believes is right.
She is caring and sensitive to her friends’ feelings.
She is sometimes emotional and acts on her feelings quickly, making some people think she’s a little scary.
Despite her tough front, Yuuko is honest and always tries to do the right thing.
She is a natural leader and very hardworking.
Yuuko played trumpet at an elite band in Minami Middle School before joining Kitauji.
She had a tough time when her middle school band failed to place in the national competition, making her treasure effort even more.
When she started at Kitauji, the upperclassmen’s lazy attitude frustrated her.
During freshman year, she nearly quit when many classmates left the band, but Kaori Nakaseko inspired her to stay.
She and fellow trumpet Tomoe Kabe even formed a “Kaori Fan Club.”
Yuuko is an experienced trumpet player, serving as section leader in middle school.
Her trumpet model is the YAMAHA YTR-850S.
She has solid brass skills and passed the strict audition for the band’s main group.
She also picked up the electric guitar as a hobby and learned quickly, practicing with Natsuki and playing karaoke.
Birthday: April 15
Blood Type: B
Favorite foods: croquettes, especially those with sweet potatoes
Dislikes: soba noodles, static electricity
Favorite drinks: sweet sodas, tea
Hobbies: guitar, karaoke
Special skill: never losing at Concentration card games
She loves Kaori Nakaseko and is known for her giant ribbon, nicknamed “Big Ribbon Senpai.”
- "Hey! Don't get so full of yourself!"
- "I'm glad I tried my best. All our effort was not wasted."
- "No! This isn't the end! We're going to nationals with Kaori-senpai!"
- "Why are you all down? We gave our best performance ever. Right?"
- "Don't underestimate us. We decided to follow the seniors a long time ago."
- "Idiot! Really, what kind of person likes to hang out with someone they hate? I’m not that smooth!"
Kaori Nakaseko
Yuuko adores Kaori, calling herself Kaori’s "believer" and forming a fan club with Tomoe.
Kaori once encouraged Yuuko not to quit, impressing her with her kindness and devotion.
Yuuko defends Kaori passionately, especially during competition.
Natsuki Nakagawa
Yuuko and Natsuki are known as “dogs and monkeys”—they fight and tease each other constantly.
They went to the same middle school but only became close in high school.
Despite their fights, they trust and help each other in tough times, sharing a deep bond.
Mizore Yoroizuka
Yuuko befriended Mizore after the mass club dropout incident.
She cares for Mizore and is openly honest with her, supporting her during hard times with Nozomi.
Even though Mizore's closest friend is Nozomi, Yuuko’s encouragement is important for her.
Reina Kousaka
Yuuko was Yukari’s rival in the trumpet solo audition, fiercely defending Kaori at first.
Over time, Yuuko grew to respect Reina’s talent and supported her as a bandmate.
Kumiko Oumae
At first, Yuuko was wary of Kumiko because of her closeness to Reina.
Later, Yuuko started trusting Kumiko, especially in solving club problems.
Tomoe Kabe
Yuuko and Tomoe started as mentor-mentee and soon became close friends.
Tomoe helps Yuuko with club duties, especially when Yuuko becomes band president.
Nozomi Kasaki
Yuuko and Nozomi were friends since middle school but clashed when Nozomi left the band without telling Mizore.
After things calmed down, Yuuko, Nozomi, Mizore, and Natsuki formed a close four-person group.
Asuka Tanaka
Yuuko looks up to Asuka’s leadership and tries to follow her example as president, though she feels a bit inferior compared to Asuka.
Middle School Days
Yuuko joined Minami Middle School’s band wanting to play an instrument and picked the trumpet because it looked cool.
She quickly became a leader in the band.
They tried hard at competitions, but lost at the Kyoto tournament, leaving Yuuko deeply disappointed.
First Year at Kitauji High
Yuuko joined Kitauji’s band, but didn’t like how lazy the older students were.
She almost quit when most of her grade left the band, but Kaori convinced her to stay.
She cared for Mizore, who mourned her friend Nozomi leaving, and bonded with Tomoe as “Kaori’s guardians.”
Kyoto Competition and the Trumpet Solo
As a second-year, Yuuko faced the arrival of new students and a new strict advisor, Noboru Taki.
When Reina Kousaka won the trumpet solo part over Kaori, Yuuko was angry and argued fiercely with Reina, defending Kaori.
After seeing Kaori’s strength and Reina’s real skills, Yuuko finally accepted the outcome.
Nationals and Becoming President
Kitauji band made it to the nationals, and Yuuko’s confidence grew.
She became close to Kumiko and supported Mizore and Nozomi through their troubles.
After the seniors graduated, Yuuko was chosen as the next band president.
Leading the Band and Facing Challenges
As president, Yuuko worked hard to keep the large band together.
She sometimes struggled with asking for help, trying to carry everything herself.
She set a goal: “Gold at Nationals.”
Despite bonding the club well, Kitauji narrowly missed winning a spot at Nationals in her last year.
After Graduation
Yuuko went to college with Natsuki and Nozomi and started living alone.
She formed a girls’ band, playing guitar and singing.
She cheers for her old band and later helps with their training before moving on.
Yuuko likes sweet foods and drinks, especially croquettes with sweet potato.
She is a sore loser and likes competing, especially at card games.
Yuuko pushes her friends, is fiercely loyal, and never lies about her feelings.
Even after graduation, she continues to visit Kitauji and help the next generation of band members.
Her dream is to keep playing music, either on trumpet or guitar.
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