Unico

It was such a good manga and I loved the two movies, sad how obscure it kinda is but at least you can watch the two movies on youtube, it's really cool that the creator is Osamu Tezuka who is also the creator for Kimba the white lion, Astro Boy,Prime Rose, and many more. Unico has a good message behind it too, I really recommend watching the movies, here are the links to them :)