Kamen no Maid Guy: Inca Teikoku no Gyakushuu Ver.

A revolutionary novelization of the popular manga currently being broadcast as a TV anime! Naeka is a busty high school girl and the granddaughter of a wealthy man. As soon as she put on the mysterious golden bra, a space-time quake occurred! Naeka and the housemaid Fubuki were sent to the Inca Empire! What will the maid do when her master is in big trouble?