Yoru to UmiNight and Sea; Plongée dans la nuit; 夜と海; The Evening and the Sea; Ночь и Море

Tsukiko Yano is a transfer student at a highschool where she doesn’t find anyone or anything interesting. That is, until one evening when she sees her classmate Aya Utsumi swimming in the school swimming pool. After that, she can’t help but see fish swimming all around her.