"Mrs. Pepperpot" is an anime adaptation of the popular children's book series by Alf Prøysen. The narrative centers on Mrs. Pepperpot, an elderly woman living in a quaint village who possesses a peculiar magical condition: she unpredictably shrinks to the size of a pepperpot. This transformation occurs at random moments, often leading to humorous and adventurous situations as she navigates her daily life in miniature form. Despite her size, Mrs. Pepperpot retains her sharp wit, resourcefulness, and kind-hearted nature, using her unique predicament to help others and solve problems in creative ways.

The series explores her interactions with the villagers, including her husband, Mr. Pepperpot, who is often bewildered by her sudden disappearances and reappearances. Mrs. Pepperpot's adventures frequently involve encounters with animals, such as her cat and other forest creatures, who become her allies and companions during her tiny escapades. The stories emphasize themes of resilience, ingenuity, and the importance of community, as Mrs. Pepperpot consistently demonstrates that even the smallest individuals can make a significant impact.

Each episode typically features a self-contained story, blending lighthearted humor with gentle life lessons. The series maintains a whimsical tone, appealing to younger audiences while also offering nostalgic charm for older viewers familiar with the original books. Through its episodic structure, "Mrs. Pepperpot" showcases a variety of imaginative scenarios, from outsmarting mischievous animals to aiding neighbors in need, all while highlighting the protagonist's enduring optimism and cleverness. The anime remains faithful to the spirit of the source material, capturing the essence of Mrs. Pepperpot's magical world and her endearing personality.