A so-called nouveau rich middle-aged man who has achieved success at work. He has money and lives in a splendid mansion, but his wife evaporates with a young man and he spends lonely days. The betrayed man's eyes are empty like glass balls... A man who can do nothing but work decided to hire a maid, but the pure white innocent beautiful girl who appeared there was abnormally sexually excited, and she was trained and dyed to be an absolutely obedient maid who liked her. "Riko" is a metamorphosis that escalates day by day.
