ef: A Tale of Memories. - Prologue
Japanese title: ef - a tale of memories. ~prologue~
Type: Special
Episodes: 1
Source: Visual novel
Genres: Drama
Studios: Shaft
Producers: Rondo Robe
Duration: 4 min
Rating: PG-13 - Teens 13 or older

The prologue for ef - a tale of memories, released on a separate DVD two months before the premiere of the TV series.