HBAD-389 Hiro Aikawa, an unfaithful wife who was captivated by the violent piston of her neighbor's worker in front of her husband.

A civil engineering worker moves next door to a married woman, Hiro, and when he comes to greet her, he looks at Hiro lewdly. Hiro complains about the civil engineering construction worker's excessive behavior, who makes a lot of noise at home every night, watches porn at high volume, and doesn't separate trash. The civil engineering worker, who had always thought Hiro was a good woman, is annoyed by her complaint and takes Hiro into his house and attacks her.