Emanon Volume 4: Emanon Wanderer Part Three (manga)

The story of her existence is told 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.