The story focuses on Jintan's view of the events that take place during that summer as everyone tries to figure out what Menma's wish is, with some focus on the other characters as well and their recollections of what happened on the day Menma died.
The anime is only 11 episodes long, but the steady pace of the story brings a lot of emotion and character development into each episode, as everyone attempts to work together to fulfill Menma's wish.
A boy sees the ghost of an old friend and gathers his old childhood friends to help fulfill her wish
Anything else?: Make sure you have a box of tissues when watching