I...
Renji and Chihiro continue work on the novel at his school's library and they manage to get to around 70% complete. Afterwards, the two take a walk on the beach and Chihiro suddenly asks Renji if he wants to kiss her. This seemingly simple act throws Renji off balance and says that their relationship is not like that, which causes her to run away in tears. Renji breaks down, hoping she will not write down what just happened in her diary. The story shifts to a flashback of when Miyako was waiting for Hirono to show up for their date in the previous episode. Miyako continues to send him voice messages on his cell phone, first being angry for him not showing up, but later becoming increasingly deperate with each call as she does not want Hirono to ignore her. The story shifts back to the present in Hirono's room, with Hirono and Kei together. After Hirono leaves his room to get food, Kei discovers Miyako's messages before Hirono learns of thier existence, and promptly deletes them, as she vowed to "erase her from his memories".
Aired 18/11/2007EP 7 - I...
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.