A young man discovers he can see the spirits of historical figures, leading to chaotic and comedic encounters. William, a young nobleman, finds himself burdened with the ability to see and interact with the spirits of famous historical figures, including Napoleon Bonaparte, who becomes his constant, often exasperating, companion. The series follows William as he navigates his newfound supernatural ability, attempting to manage the eccentric personalities of these historical specters while dealing with the mundane realities of his aristocratic life and the machinations of those around him.

The series is known for its humorous take on historical figures, presenting them in unexpected and often anachronistic situations. Readers often praise the witty dialogue and the creative reimagining of well-known personalities. The blend of supernatural comedy with historical elements provides a unique reading experience that appeals to fans of both genres. The ongoing nature of the manga allows for continued exploration of character dynamics and comedic scenarios.