from Diary of Our Days at the Breakwater
She is the school's infirmary nurse and the teacher-advisor of the Embankment Club. Sayaka is a very casual and friendly as a nurse/teacher. But that respectable and gentle image disappears once she starts drinking. The alcohol reveals a totally different personality, that of a drunk old man, that uses the Embankment Club as a personal night club, where she can drink, eat and talk with girls. She generally appears at the club by the end of the month to get food, as she already spent most of her salary on liquor.

Diary of Our Days at the Breakwater
Hina is an indoor-oriented girl who likes crafts and moves to a seaside town to continue with her high school education. She meets upperclassman Kuroiwa as she walks along an embankment and joins the mysterious "Embankment Club." Hina dislikes sea creatures, but she fishes with her fellow club members and eats their catches. She gradually starts to appreciate the appeal of the ocean.