Niku dorei: Kanashiki gangu (1982)

AKA: 肉奴隷　悲しき玩具, Flesh Slave: Sorrowful Toy, 肉奴隶：悲伤的玩具 | Directed by Katsuhiko Fujii | Country: Japan | Language: Japanese | 67 Mins
Cast: Nami Matsukawa, Eimei Esumi, Kazuyo Ezaki, Kyoko Ito, Kissei Kumamoto
Subtitles : –

Synopsis (Google Translate)
Raised and trained as a sex slave, Nami served as a maid, enduring all the shame and blame by the sadistic master of the mansion and his mistress. There was a beautiful girl in the mansion, who had a beautiful girl who had a life in a wheelchair while caring for Nami.

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