

It turns out that Kayo, absent from school, has disappeared after all. Satoru is tormenting himself with the thought that he should have been able to do something more. On top of that, Aya Nakanishi from the nearby elementary school has vanished too!
Satoru Fujinuma is a struggling manga artist who works at a pizza parlor. Ever since he was a kid, he has been holding himself responsible for a kidnapping incident. Finally, the time has come for the truth from his past to be revealed…
The year is 1988… Satoru is back in elementary school. Now, he has a chance to change the future!

Satoru is determined to prevent Kayo from getting kidnapped before her birthday. He goes to her place to see her, but… is he too late?