"Dinosaurs Sanctuary" is set in a world where dinosaurs have been successfully cloned and coexist with humans. The story takes place in Enoshima Dinoland, a struggling dinosaur sanctuary that serves as both a research facility and a tourist attraction. The sanctuary faces financial difficulties and the constant challenge of maintaining the well-being of its dinosaur inhabitants. The narrative explores the ethical, scientific, and emotional complexities of human-dinosaur coexistence, blending elements of science fiction, drama, and slice-of-life storytelling.

The protagonist, Suma Suzume, is a young zookeeper who has dedicated her life to caring for dinosaurs. Her passion for these creatures stems from a childhood encounter with a dinosaur that saved her life, instilling in her a deep sense of responsibility and empathy. Suzume works alongside a diverse team of professionals, including veterinarians, researchers, and caretakers, each with their own motivations and expertise. Together, they navigate the daily challenges of running the sanctuary, from treating injured dinosaurs to addressing public skepticism and corporate pressures.

The plot is driven by both episodic and overarching storylines. Individual chapters often focus on specific dinosaurs and their unique needs, highlighting the care and effort required to maintain their health and happiness. These stories are interwoven with larger themes, such as the ethical implications of cloning, the impact of human activity on the environment, and the delicate balance between conservation and exploitation. The sanctuary's precarious financial situation adds tension, as the team must find ways to attract visitors and secure funding while staying true to their mission of ethical dinosaur care.

Key characters include Dr. Kaido, a seasoned veterinarian with a pragmatic approach to his work, and Kaito, a young researcher whose idealism often clashes with the harsh realities of the sanctuary's operations. The relationships between the staff members are central to the narrative, showcasing their camaraderie, conflicts, and shared dedication to the dinosaurs. The dinosaurs themselves are portrayed with distinct personalities and behaviors, emphasizing their individuality and the emotional bonds they form with their caretakers.

"Dinosaurs Sanctuary" combines scientific accuracy with heartfelt storytelling, offering a nuanced exploration of the challenges and rewards of preserving life in a world where humans and dinosaurs share a fragile coexistence. The series balances educational content with emotional depth, making it accessible to readers interested in both the speculative and humanistic aspects of its premise.