Disillusioned doctor Yuuichi is bought by a handsome stranger and is kept as a sex slave-- but the master sometimes shows surprising kindness. Just who is he? Read in this order: 1. Okubyou na Junjou 2. Retsujou no Meikyou 3. Retsujou no Yuuwaku 4. Retsujou no Hazama 5. Retsujou no Rensa