Genmukan: Aiyoku to Ryoujoku no Inzai

幻夢館~愛欲と凌辱の淫罪~

Detective Satoru Kido is brought to a luxurious mansion to search for a lost jewel, but soon realizes there's more than meets the eye with the current lolita Mistress, the willing maid, the classic butler, the fugly manservant, and the sexy tutor. (Source: Anime News Network)