A young mother attempts to pick up the pieces after a horrible accident damages her memory, but she soon begins to suspect that her husband's indiscretions are what caused her suffering and her whole family might still be in danger.
Shinobu and her class are preparing for a play for their school's cultural festival while Aya feels a little distanced from Shinobu for not having any elementary school memories with her. The story will takes us back to the past where Shinobu, Yoko, and Aya in their third year middle school year are preparing for their highschool entrance exam.