Ao Haru Ride OVA
Bundled with the 11th and 12th volumes of theAo Haru Ride
"Unwritten" - An episode about Futaba and Kou in middle school. Based on the chapter called "Unwritten." also known as chapter 0 or Prologue.
"Page.13" - An episode that continues the story after the recent television anime's 12th and final episode.