Okubyou na JunjouTimid Pure Love

A doctor has a one-sided love for one of his twin step brothers. Read in this order: 1. Okubyou na Junjou 2. Retsujou no Meikyou 3. Retsujou no Yuuwaku 4. Retsujou no Hazama 5. Retsujou no Rensa