Naoko no Tropic Angel: Hyouryuu
Japanese title: 直子のトロピックエンジェル 〜漂流〜
Alternative titles: Naoko no Tropic Angel Hyoryu
Type: OVA
Source: Unknown
Episodes: 1
Status: Finished Airing
Aired: May 10, 1985
Duration: 22 min
Rating: Rx - Hentai
Genres: Hentai

One of the first adult OVA. Released in 1985. The Naoko in the title refers to the original author, not a character. 

(Source: AniDB)