Shimenawa are made to ward off evil spirits at the start of the year. With New Year's just a few months away, Shiho's son, Hikaru, works as a shimenawa craftsman in the suburbs, tying ropes. This year, Hikaru contacts Shiho again. "Mom... I want to soak the rope in my mother's bodily fluids again this year." Legend has it that shimenawa made with rope soaked in a woman's bodily fluids are far more effective than other ropes. So Shiho travels to her son's house to be tied by Hikaru again this year, but...