Satoru wakes up in the year 2003, having been in a coma for fifteen years following Yashiro's attempt to kill him, and discovers that he has lost most of his memories, including the killer's identity. While undergoing rehab, Satoru is visited by his Kenya and Hiromi, as well as Kayo, who has grown up to become a housewife with a child. Later, he meets a leukemia patient named Kumi, who is to undergo surgery, as well as Yashiro himself, who has become a politician. Two days before Kumi's surgery, Yashiro brings Satoru to the rooftop, where Satoru reveals that he has regained his memories.