"Shimajirō to Ehon no Kuni" centers on Shimajirō, a cheerful and curious young tiger, who embarks on an adventure into a magical world of picture books. The story begins when Shimajirō discovers a mysterious picture book in his room, which suddenly comes to life, pulling him into its vibrant, storybook realm. This world, known as Ehon no Kuni, is inhabited by characters from various fairy tales and nursery rhymes, each living in their own unique storybook setting.

As Shimajirō explores Ehon no Kuni, he encounters a diverse cast of characters, including the mischievous but kind-hearted Kiki, a bird who becomes his guide and companion. Together, they navigate through different storybook worlds, solving problems and helping the inhabitants with their challenges. Each storybook world presents its own set of adventures, often involving themes of friendship, cooperation, and problem-solving. Shimajirō’s journey is not just about exploration but also about learning valuable life lessons through his interactions with the characters he meets.

The narrative is episodic, with each episode focusing on a specific storybook world and its inhabitants. Shimajirō and Kiki often find themselves assisting characters like the Three Little Pigs, Little Red Riding Hood, and other classic figures, helping them resolve conflicts or overcome obstacles. The series emphasizes the importance of kindness, empathy, and teamwork, as Shimajirō’s actions often lead to positive outcomes for the characters he encounters.

Throughout the series, Shimajirō’s curiosity and determination drive the plot forward, as he seeks to understand the mysteries of Ehon no Kuni and find a way back to his own world. The story balances lighthearted moments with gentle moral lessons, making it accessible and engaging for younger audiences. The characters’ interactions and the imaginative settings create a sense of wonder and adventure, while the episodic structure ensures a variety of experiences within the overarching narrative.