Yuuko Shirakawa
Yuuko Shirakawa is one of the librarians at Yamaku High School. Her duties include stocking the library, including with foreign texts and those in an alternative format (such as Braille). She also works part-time at a popular tea rooms in town called the Shanghai, so as to fund her university studies in European history.
Personality
Yuuko is timid and a little ditzy; a notable refrain is her banging her head whenever someone startles her in the library, from books being returned to Lilly calling for her. She professes herself that she has trouble managing her own life but despite this, adopts at times a mentor-like role to Hisao, advising him on tact in his new environment.
In the Shanghai, a more professional side of her emerges; despite her underlying timidness, she seems to relax and enjoys providing a good service to customers, albeit with the occasional verbal slip-up.