Ochanomizu's Miyuki, just 20 years old, finds herself in a cramped apartment shared by four low-paid salarymen—one of whom is married—turning the place into a secret hideout with irresistible appeal. The highlight is encountering a sophisticated, elegant married woman whose alluring, voluptuous figure is noticeable even through her clothes, despite her prim appearance. Witnessing her lose control in ways she never would in daily life brings out a deeply perverse side, leading to unbelievably intense and arousing developments. This room delivers a full experience of paid companionship, overflowing with both emotional release and physical pleasure.