High school girl Kokone Morikawa, who is always dozing off, lost her mother and lives with her father in Okayama. Recently, she has been having the same dream over and over again. It is a fairy tale about machines and magic that her father, Momotarou, used to tell her when she was a child.
In the dream, she is Princess Ancien, who has magical powers that can bring things to life. In the summer of 2020, three days before the Tokyo Olympics, Momotarou is suddenly arrested. The only way to save her father, who is being falsely accused, is to… "dream."
