Chikan densha: Ato oku made 1cm (1985)

This one’s all about bondage and rough play. A slim Asian girl with long black hair is tied up in a dark bedroom. The guy’s got her in a tight spot, using ropes and his hands to control her breathing. It’s intense, with close-ups of her face as she struggles. The sex is hard and fast, mostly missionary, with the guy really going at it. Her reactions are convincing, and the dim lighting adds to the mood. There’s no music or distractions, just the raw sounds of what’s happening.