Quick Plot Summary: Released in 2003, All Night Long: Initial O is a Horror film directed by Katsuya Matsumura, written by Katsuya Matsumura. The narrative crafts an atmosphere of dread and suspense, using psychological terror and visual scares. As part of the All Night Long Collection, it provides a scannable look at the movie's central conflict involving Sakura Kobayashi as (as Sakura).