Kawarazaki-ke no Ichizoku The Animation
English name: Kawarazaki-ke no Ichizoku The Animation
Genres: Hentai
Type: OVA, Episodes: 2
Aired: Nov 29, 1996 to Apr 25, 1997
Studio: Arms
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
The days at a hostal doesn't seem to be very normal. Instead the visitors get a special treatement. The maids are always on dispose to serve their masters even if it is something not really normal. Hiden room and double view mirrors are only a part of this ex-state building. 

(Source: ANN)