Unemployed Junji was living with his older brother and his wife when one day he caused a traffic accident, injuring the other driver. Held responsible and demanded compensation, Junji couldn't pay, so his sister-in-law Kanako began working as a housekeeper at the man's home to make amends. However, behind the scenes, Junji and the man had a secret arrangement—Kanako was forced into performing lewd nursing acts on the injured man. Though reluctant at first, she complies, continuing her sensual care in increasingly provocative attire. Witnessing her like this, Junji callously gets a hard-on, his perverted cock betraying his own sister-in-law's suffering.