To hide her husband's debt, she became a live-in servant for a wealthy man. In his mansion, servants were required to remain completely naked at all times and strictly wore collars. Among them, she stood out as exceptionally beautiful, with a slender, toned figure that captured the master's attention. Addressed as "Master," she had to stay constantly alert and submissive before her lustful owner. Amid this situation, the struggle to preserve her dignity unfolds, along with complex dramas arising between her and the other servants in the household.