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Fetish Research: Female Body Observation Experiment on a 38kg Beautiful Girl's Heartbeat, Stomach Sounds, and Body Temperature Who's the JAV actress in this video? Amateur? Name revealed!

A 38kg extremely slender girl undergoes a rare experiment to record sounds such as her heartbeat and the sound of her drinking water. Her heart rate is increased through physical exercise, capturing various bodily sounds. During an experiment measuring friction heat from her breasts, she actually gets slightly annoyed—understandably so, since her A-cup size makes it difficult to hold a thermometer in place (which becomes obvious while watching). This release includes multiple scenes shot from different angles of the same experiments, enhancing the viewing experience. The interview footage is shared with other concurrently filmed works, ensuring consistent and cohesive content.