ef - a tale of melodies. ~prologue~ The prologue of ef - a tale of melodies. Details Casts Posters Title ef - a tale of melodies. ~prologue~ Release Date 2008-09-26 Runtime 00 Hours 04 Minutes Genres Mystery Drama Romance Production Companies SHAFT, Minori Production Countries Japan Shindou, Chihiro... ... Natsumi Yanase... ... Hirono, Hiro... ... Asou, Renji... ... Original Size (640x960)