"Kemeko Deluxe!" is a comedic science-fiction manga series that blends action, romance, and absurd humor. The story centers on Sanpeita Kobayashi, an ordinary high school student whose life takes a bizarre turn when a mysterious girl named M.M. arrives at his doorstep. M.M. claims to be Sanpeita's fiancée, sent by his father, a scientist who has been missing for years. However, her arrival is accompanied by a small, robotic suit named Kemeko, which she uses to protect Sanpeita and assert her dominance over his life.

Kemeko, the robotic suit, is both a source of comedic chaos and a formidable weapon. It is equipped with advanced technology and a quirky personality, often clashing with Sanpeita and others around him. M.M. uses Kemeko to fend off various threats, including rival factions and dangerous organizations seeking to exploit the technology behind the suit. These adversaries often have their own agendas, leading to chaotic and humorous confrontations.

As the story progresses, Sanpeita finds himself entangled in a web of conspiracies involving his father's research and the origins of Kemeko. The narrative explores themes of family, loyalty, and the consequences of advanced technology, all while maintaining a lighthearted and comedic tone. The dynamic between Sanpeita, M.M., and Kemeko forms the core of the series, with their interactions driving much of the humor and emotional moments.

Supporting characters, such as Sanpeita's classmates and other individuals connected to the mysterious organizations, add depth to the story. Their involvement often escalates the stakes, creating a balance between the series' comedic elements and its underlying plot. The manga's pacing alternates between episodic comedic scenarios and longer arcs that delve into the overarching mystery of Sanpeita's father and the true purpose of Kemeko.

"Kemeko Deluxe!" combines slapstick humor, over-the-top action, and a touch of romance, making it a unique entry in the science-fiction comedy genre. The series thrives on its eccentric characters, absurd situations, and the unpredictable nature of Kemeko, ensuring a blend of entertainment and intrigue throughout its run.