Tsui no Yakata ~Ningyou~

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

It's a winter's day and a second-hand dealer by the name of Akihiro pursues a clue he hopes will help him find a valuable doll by the little-known but skillful doll-maker Holst.
The clue leads him to a certain European-style mansion, currently used as a brothel. Akihiro, meeting the mansion's mistress and the maid Melissa, decides to search the house in order to find the missing doll...