Princess Holiday: Korogaru Ringo Tei Senya Ichiya
Genres: Fantasy, Hentai
Type: OVA, Episodes: 2
Aired: Mar 25, 2004 to May 25, 2004
Studio: Datama Film
Source: Visual novel
Rating: Rx - Hentai
Synopsis:
The storyline revolves around a princess that has returned after 3 years, and a hero that is given the burden to protect the girls (both the princess and the younger sister).

(Source: ANN)