Neko wa Yomigaeru

Two months ago, a horrible incident was caused by a student at a prestigious national school where only excellent students can enter. After the incident, Ayakawa Rika, classmate of that student, began suffering from a nightmare where a girl she doesn't know calls her name while crying. She tries to remain bright at school, keeping the dream a secret and avoiding the story of the incident. Until that day, after school...

(Source: Everystar)