Retsujou no Meikyuu

1) Retsujou no MeikyouDisillusioned 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?2) Retsujou no HazamaYuuichi and Takasugi's story continues. Yuuichi is having doubts about their relationship.3-4) Retsujou no Rensa5) Okubyou na JunjouA doctor has a one-sided love for one of his twin step brothers.(Source: Manga Updates)