One winter in 1967, a young man of twenty returned home from his travels by ferry. His perception of the world around him changes forever when he meets a mysterious and beautiful girl named Emanon during a relaxed moment in his cabin. She invites him to join her for dinner, and later offers to tell him her life story when she sees him reading a science fiction novel.
Emanon informs the man that her memory stretches back over three billion years, to when life first appeared on Earth. She is a unique witness to the planet's past, inheriting genetic memory passed down through her maternal line since the dawn of life itself. This incredible tale of Omoide Emanon illustrates the extraordinary life of a girl who carries within her the memories of the Earth.