SANA: Let Me Hear

In 1992, a rooftop confrontation between schoolgirls ends in tragedy as one girl, Sana, accidentally falls to her death. Mysteriously, a cassette recorder was found next to her body, still recording. 32 years later, a young woman named Honoka (Nagisa Shibuya) is hired to teach summer classes at the same school. History repeats itself as another student falls from the same building, witnessed by Honoka and her students, Hitomi (Hayase Ikoi) and Takeru (Soma Santoki).