Marielle is a young girl currently living in a remote house deep in the mountains between Switzerland and France to recover her health. The story is told through the memories of her adventures with Memoru, a tiny alien girl who lives on a nearby island. Her people are gnome-like beings who are stuck on Earth after their spaceship crashed here.

In 1984 the Japanese government approved gene recombination experiments. Baggy is Tezuka’s response. A cute kitten escapes a lab, and is befriended by lonely child Ryosuke. Years later, he joins her in a quest that’s part spaghetti Western, part contemporary adventure.