I honestly do not know that the purpose of this manga is. It never attempts to have a good plot, its characters never get a chance to develop, and it's too bland and quick-paced to be considered decent ecchi.

It has the thinnest veneer of a story possible--it's a series of random scenes of women molesting Miyuki, with each chapter having a different theme, from Wonderland, to Boxing, to Video Games. There is no continuity between these chapters besides Miyuki herself. Miyuki herself handles every incident the same.

There is really nothing else to say about it, except perhaps that the art is decent.That said, there are far better options for eye candy if that's what you're looking for.