"Monster Girl Doctor" is a fantasy manga series set in the bustling city of Lindworm, where humans and mythical creatures coexist. The narrative centers on Dr. Glenn Litbeit, a skilled and compassionate physician specializing in treating monster girls—beings with both human and animal traits. Glenn operates a clinic alongside his assistant, Sapphee, a lamia who is deeply devoted to him and often assists in medical procedures. The series explores Glenn’s daily life as he diagnoses and treats various monster girls, each presenting unique medical challenges due to their distinct anatomies and physiologies.

The plot unfolds through episodic cases, with each chapter focusing on a different monster girl patient. These cases range from routine check-ups to complex medical emergencies, showcasing Glenn’s expertise and dedication. Among the patients are a centaur suffering from hoof issues, a mermaid with respiratory problems, and a harpy experiencing feather loss. The medical scenarios are often intertwined with the cultural and social dynamics of Lindworm, highlighting the coexistence of humans and monster girls in a society built on mutual respect and cooperation.

Sapphee plays a significant role in the story, not only as Glenn’s assistant but also as a character with her own motivations and feelings. Her unrequited affection for Glenn adds a layer of personal tension to the narrative, though the focus remains primarily on the medical aspects of the story. Other recurring characters include Tisalia, a proud centaur noblewoman who frequently seeks Glenn’s help, and Lulala, a mermaid idol whose health is crucial to her performances.

The series balances its medical focus with lighthearted moments and occasional humor, often derived from the interactions between Glenn and his patients. The world-building emphasizes the integration of monster girls into society, with detailed depictions of their unique lifestyles and challenges. The medical procedures are presented with a blend of realism and fantasy, incorporating imaginative solutions tailored to the patients’ hybrid anatomies.

Overall, "Monster Girl Doctor" offers a blend of fantasy, slice-of-life, and medical drama, with a strong emphasis on the professional and ethical challenges faced by Glenn as he navigates the complexities of treating non-human patients. The episodic structure allows for a diverse exploration of monster girl species and their medical needs, making it a distinctive entry in the fantasy genre.