Clumsy Hotori Arashiyama is a girl with a love for mysteries and a knack for getting into trouble. Hotori works as a waitress in an unsuccessful coffee shop when the manager comes up with a plan to increase its fortunes by changing into a maid cafe. Unfortunately, no one knows how to make a successful maid cafe other than dressing everyone in a maid outfit. What follows is a wacky series of incidents involving Hotori’s many friends, mismatched love stories… and ghosts and aliens.