Nausicca of the Valley of the Wind. Back when Eclipse(I think) was publishing it. In comic book form.
See, back in the dinosaur age of the late 80's early 90's, manga wasn't published in cute little volumes, most of the time. Instead, it was published in comic book format, chopping up stories as necessary (but often not). Later on they were often collected in volumes, but sometimes not - I've still got (I hope) my copy of the Pineapple Army collection, for instance.
That's when I started getting into Manga, and it's what pulled me into comics, which I hadn't really been collecting before.