The Case of Hana & Alice
花とアリス殺人事件 (original)
Tetsuko, a 14-year-old student, moves with her mother to a new town. She is immediately bullied in her new school and is given the seat of a murdered student. Determined to find out what happened, Tetsuko begins investigating the death.
Starring Yu Aoi, Anne Suzuki, Ryo Katsuji, Haru Kuroki, Tae Kimura, Sei Hiraizumi, Shôko Aida, Shoko Aida, Ranran Suzuki, Tomohiro Kaku
It's a animation and drama movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Indonesia.