終の館 ～檻姫～

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

One day, the protagonist meets a cheerful, positive girl with brown skin.
When his pet dog dies the brightness of the girl alleviates his loneliness and a bond of mutual trust develops between them.
Their daily life passes bit-by-bit and the connection between them deepens. However, the passing of time gradually drives the human mad...