![Youko Itoigawa](https://cdn.noitatnemucod.net/thumbnail/400x400/100/0218ab20116774e9ae8b52698297f8b3.jpg)
Youko Itoigawa
糸魚川 養子
The school's 61 yr-old librarian and was the Classic Club's first president during the time of the incident.
Her maiden name is Kouriyama.
Her maiden name is Kouriyama.
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Hyouka
Supporting (Role) TV
![Koyama, Mami](https://cdn.noitatnemucod.net/thumbnail/100x100/100/a442adf135293802f8992bd6c87d5fa6.jpg)
Koyama, Mami
Japanese![Young, Linda](https://cdn.noitatnemucod.net/thumbnail/100x100/100/8e3097c3b8f7b1ad35111bbad5a10cde.jpg)