कच्चा बैकस्ट्रीट उद्योग, हॉट स्प्रिंग रिसॉर्ट क्षेत्र, पिछली गली

In a certain local hot spring resort area, standing deaf-mute girls appear on back streets with few pedestrians. This area, with its underground atmosphere, is a "real" back-alley nude sex business known only to those in the know.