Kurutta kajitsu (1981)

Skinny Asian girl in her 20s, long black hair with bangs, slim frame, takes it rough inside a residential room lit by natural light from a window with blinds. She’s first seen alone, then a male in his 30s joins her — short dark hair, average build, shows up outside in a van before moving indoors. They start kissing hard, mouths open, aggressive, her head tilting back against the wall. The guy manhandles her in doggy style, gripping her hips tight, slamming into her from behind while the camera stays close on her back and ass. Later there’s oral — she’s on her knees, face close to the lens, giving a blowjob with visible effort, lips stretched. One shot shows a younger male with a bruised face, also short dark hair, maybe the same guy after a fight or part of a rough story theme. The whole thing feels raw, not glossy — more underground than studio polish, with handheld-style framing and emphasis on facial reactions. No small talk, just sex, pain, and intensity from start to finish.