Bird Call(2006)

A timid girl high school student, Sonoko Ishii (Emi Suzuki), has two important friends at her high school. They are Sonoko's boyfriend Satonaka (Kei Tanaka) and her best friend Miyuki (Erika Okuda), a delinquent high school student. Sonoko is suffering from depression due to "bullying" by a girl in her class. Miyuki, on the other hand, is a "wrist-cut" addict due to a terrible experience she had in her childhood. Satonaka is a good guy who tries to support them both. Then one day, unexpectedly, Satonaka and Miyuki have a big accident.