Emanon is strange even for an immortal--a person with a mind over three billion years old, her consciousness endlessly migrating from new body to new body over the entire history of life's evolution on Earth.

Emanon Volume 4 tells the story of her existence in that odd decade called the 1980s, as Emanon's latest incarnation grows from a grade schooler who seeks to conceal her intelligence, to a teen trying to avoid a relationship with the superhuman classmate pursuing her, to a young adult facing the death from old age of her best friend Hikari--a mortal time-jumper whose own life has crossed that of Emanon many times in the past, and will do so again many times in the future . . . but who dies at last in the here and now.