Memories of Emanon(2006)

The year is 1967, and a young Japanese man is thinking about the future. On one side of the water, the war is raging in Vietnam; far away on the other side, the Apollo Project has just met with disaster as three astronauts die in a capsule fire. And here and now, on a long nighttime ferry ride back home, he will meet and fall in love with a mysterious young woman who carries a past deeper and more profound than his dreams and fears of tomorrow. Her name, she jokes, is no name—Emanon, and she can never be forgotten, any more than she can forget.

(Source: Dark Horse)