u/AffectionateSign3284

Hi people I'm wondering If anyone can help me?
I'm looking for an old Manga film that was shown on the Sci-Fi channel maybe back in the late 90's I'm sure It was about a guy that's mission was to find a woman and protect her as she held the power to save the planet he falls in love with her only for her to die but before she dies she tells the guy that she has a sister and he must find her as she also holds the same power?

Anyone know what this is?

Thanks In advance.