Love
Renji searched for the pages of Chihiro's diary about him. He finds Chihiro at the station where they first met. Renji promises that he will find all the remaining pages of the remaining diary in which Chihirio tells him that '13 hours is a long time'. Chihiro still doesn't forget about Renji because for the past 13 hours the only thing that she though of was only the memories she had with renji. The three love stories of Renji x Chihiro, Hiro x Miyako, and Kyosuke x Kei ended a happy one. Yuko finally reunited with Yu at the old church. It ended happily ever after.
Aired 23/12/2007EP 12 - Love

ef ~ A Tale of Memories
On Christmas Eve, Hiro Hirono's bike is stolen by a girl chasing a thief who stole her purse. He gives chase and finds her unconscious and his bike ruined. The girl, Miyako Miyamura, soon awakes and the two begin to talk. After making sure she is okay, they end up spending Christmas Eve together. Later, Hiro finds out Miyako attends the same school as him and they begin to spend more and more time together, Miyako developing affections for Hiro. Kei Shindou -- Hiro's childhood friend who has long held a crush on him -- begins to become jealous and a love triangle follows.
The series also tells the story of Renji Asou. One day, he meets Chihiro Shindou, the twin sister of Kei Shindou, at an abandoned train station. Even though she's very shy, they get along pretty well and begin meeting at the same spot everyday. However, Renji finds out that Chihiro was in a car accident years ago and as a consequence she suffers from a disability: her memory lasts only 13 hours. Nevertheless, after learning that Chihiro's dream is to write a novel, Renji finally decides to help her fulfill her dream while also trying to make her overcome the difficulties imposed by her condition.