The job of a butler is always a challenge, but tending to a girl who constantly gets into trouble and lacks ladylike manners is a task that few are capable of undertaking. Nevertheless, Hayate Ayasaki has mastered the art of protecting Nagi Sanzenin from potential kidnappers as part of his butler duties. Alongside this perilous responsibility, Hayate faces various other daunting tasks on a daily basis, such as nursing an ailing person back to health or retrieving stolen money or even an embarrassing video. His competency and efficiency earn him the title of a perfect manservant. However, there is one area where Hayate falls short - he fails to recognize when attractive girls express interest in him. This may be a blessing in disguise, or else Hayate's duties may be neglected, including polishing the silverware.