Tsui no Yakata ~Tsumi to Batsu~

Released under the Circus brand division 'Circus Fetish', the Tsui no Yakata series mainly focuses on maids.

The protagonist Katsuhiko is an aspiring novelist, in a fictional Europe where sadist literature is widely popular.
He is left the task of managing his uncle's European-style mansion where he meets Suiren, his ideal woman and starts writing a sadist novel with her as his model.