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…

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!

After confirming that the fire at Airi’s home is related to his mother’s death, Satoru relies on a note she left behind to make contact with Sawada, a former reporter for TV Ishikari.