|Occupation||Kindergarten student/Elementary student (Probably)|
|Relative(s)||Sapphire Kawashima (Older Sister)|
Kohaku is often noted how closely she resembles her older sister. Kohaku has rosy cheeks and a cute and round-looking face. Like Sapphire, she has messy, wavy, short, gold-ish hair. She also has a piece of her hair pointing up. Kohaku has green-ish, lime eyes and quite thick eyebrows. She also wears a blue ribbon.
Kohaku is a shy and timid girl. She also tends to be childish and expressionless sometimes. But she is friendly and soft spoken, and has good manners, just like her sister.
- Kohaku (琥珀) is the Japanese word for amber.
|Characters of "Hibike! Euphonium" Universe|
|Kitauji High School||First Year Students||Kumiko Oumae • Reina Kousaka • Hazuki Katou • Sapphire Kawashima • Shuuichi Tsukamoto • Chikao Takigawa • Chieri Takashita • Tsubame Kamaya • Akiko Yoshizawa|
|Second Year Students||Takuya Gotou • Natsuki Nakagawa • Riko Nagase • Yuuko Yoshikawa • Nozomi Kasaki • Mizore Yoroizuka • Tomoe Kabe|
|Third Year Students||Asuka Tanaka • Haruka Ogasawara • Kaori Nakaseko • Aoi Saitou • Hirone Torizuka • Kotoko Himegami • Juri Sawada • Shouko Hagiwara • Yoriko Souga • Tsune Watabe • Raina Kitamura • Oka Mikino • Sana Kasano • Hideri Noguchi • Narai Tanabe|
|Others||Noboru Taki • Michie Matsumoto • Mamiko Oumae • Akiko Oumae • Kohaku Kawashima • Azusa Sasaki • Masahiro Hashimoto • Satomi Niiyama • Saki Kayama • Junichi Takino • Noboru Taki's wife|