The protagonist loves boobs and maids above all else. He visits a maid café everyday where his childhood friend, Mei, works and dreams about one day becoming a real master while playing a maid themed social game. Suddenly one day, the screen on his phone starts shining. Before they knew it, he, Mei and Mei's mother, Maasa, were transported to another world. They arrived at a bathhouse of a maid academy, where various races learn to become good maids! They encounter nine maids that shake their nice, plump breasts.