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.

Seaside Maid Cafe in the Maruko Shopping District at first glance seems normal. But its three employees are rather odd: Hotori aspires to be a detective, Toshiko is a perfectionist, and Uki is an old woman with a fondness for maid outfits.