Tachibana is in a coma, but when she wakes, who will she be?
Otonashi stays by her all night. When he falls asleep, he dreams of his own death.
He didn't die in the crash, or at least, not immediately.
It was a cave-in, and the passengers were trapped underground for 7 days.
Iwasawa (the band/distraction leader) tells the story of her life and death.
She was saved from a brutal home life by music, but that salvation was betrayed when a head injury left her mute and paralysed.