A husband and wife, along with a few employees, have been running a small town factory. Today, Yumi works alongside her husband. Recently, their son Satoru has been helping out at the factory, and to outsiders, they seem like a very close-knit family. However, Yumi and Satoru have been secretly in a forbidden relationship behind their father's back. The two of them indulge in 'taboo pleasure,' engaging in lewd acts that escalate as they seek more thrill and gratification…
