Devil's Beast - Perverse Love (1987)

In the ancient capital of Kyoto, Rimi Hoshino, a young woman from a respectable family, becomes the sacrificial offering to a lust beast. Trapped in the beast's lair, she experiences the depths of terror amidst its collection of human bodies. Rimi cries out in fear, yet soon realizes she is serving the beast's desires. Meanwhile, the lust beast has already ventured into the streets of Kyoto, seeking its next target.