In 2020, a large creature rampages through Tokyo, destroying everything in its path. In 1959, Asa Asada, a spunky young girl from a huge family in Nagoya, is kidnapped for ransom--and not a soul notices. When a typhoon hits Nagoya, Asa and her kidnapper must work together to survive. But there's more to her kidnapper and this storm than meets the eye.

After stealing Yone's film, Asa finds herself face-to-face with River Etheridge, the author of the song that she's been singing since childhood. Meanwhile, Jissoji's operatives aren't pleased with Asa's disappearance. Kasuga heads to Shibuya to search for her, but "that thing" could strike at any moment!