Outlanders

In the midst of a violent invasion of Earth by unknown alien forces, photojournalist Wakatsuki Tetsuya comes across a scantily-clad alien woman, cutting a swath of death through the Terran ranks with her sword. After a chaotic struggle, Tetsuya is knocked unconscious, only to awaken aboard her starship. To his surprise, she turns out to be Kahm, the invaders' princess - and she has picked Tetsuya for a starring role in her upcoming wedding. As the groom... (Source: ANN)

Type: OVA
Rating: R - 17+ (violence & profanity)
Season: fall 1986
Status: Finished Airing
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Tags: sci fi sci-fi science fiction comedy adventure manga shounen ecchi male protagonist seinen non-human protagonists present romance nudity aliens space kemonomimi gore sudden girlfriend appearance outer space alien shipboard interspecies relationship humanoid alien monster girl space opera