I'm looking for this manga about a girl and her father who is on the run. The girl dresses up as a boy who works as a body guard for the princess who is her half-sister and her father dress as a woman.

[img]http://vdexproject.net/p/46696/partymini.png[/img]

I think its knight princess - cute story, although its been a while since I read it so hope im on track.