"Combat Baker and Automaton Waitress" is a manga series set in a post-war world where advanced technology and automatons coexist with human society. The story centers on Lud Langart, a former soldier who once piloted a powerful humanoid weapon known as a Wiltia during a devastating war. Haunted by the atrocities he committed on the battlefield, Lud retires to a quiet life as a baker in a small town, hoping to atone for his past by bringing joy to others through his bread. Despite his efforts, his intimidating appearance and lack of social skills make it difficult for him to connect with the townspeople, and his bakery struggles to attract customers.

The narrative takes a turn when Sven, a highly advanced automaton, arrives at Lud's bakery. Sven was originally designed as a military weapon but now seeks a new purpose. She offers to work as a waitress in Lud's shop, using her exceptional abilities to help revitalize the struggling business. As the two work together, they form an unlikely partnership, with Sven's cheerful and resourceful demeanor complementing Lud's reserved and earnest nature. Their interactions gradually reveal deeper layers of their personalities and pasts, exploring themes of redemption, purpose, and the search for humanity in a world shaped by war and technology.

The story also delves into the political and social tensions of the post-war era, as remnants of the conflict continue to influence the world. Lud and Sven encounter various individuals and factions, including former comrades, government agents, and rogue automatons, each with their own agendas. These encounters challenge Lud and Sven to confront their pasts and redefine their roles in a changing society. The series balances moments of lighthearted humor and heartfelt emotion with action-packed sequences, creating a narrative that is both engaging and thought-provoking.

The main characters are well-developed, with Lud's internal struggle to reconcile his violent past with his desire for peace serving as a central theme. Sven's journey from a weapon of war to a being seeking purpose and connection adds depth to her character. Supporting characters, such as the townspeople and other automatons, contribute to the world-building and provide additional perspectives on the story's themes. The manga explores the complexities of human and automaton relationships, questioning what it means to be alive and the potential for growth and change, even in the aftermath of destruction.