"Hōkago no Tinker Bell" is a short-form anime series that revolves around the daily lives of four high school girls who form a club dedicated to creating and inventing small gadgets and tools. The story is set in a typical high school environment, where the girls—Kotone, Yayoi, Sumire, and Riko—spend their after-school hours in the Tinker Bell Clubroom. Each episode focuses on their collaborative efforts to design and build various inventions, often inspired by their everyday experiences or challenges they encounter.

Kotone, the club president, is the driving force behind the group, bringing enthusiasm and creativity to their projects. Yayoi, the most technically skilled member, handles the engineering and construction aspects, ensuring their ideas come to life. Sumire, the artistic and imaginative one, contributes unique designs and aesthetic touches to their creations. Riko, the youngest and most curious member, often provides fresh perspectives and ideas, though her inexperience sometimes leads to humorous mishaps.

The narrative is episodic, with each installment showcasing a new invention or problem the girls aim to solve. Their projects range from practical tools, like a device to help with household chores, to whimsical creations, such as a machine that can predict the weather. The series emphasizes teamwork, problem-solving, and the joy of creativity, often highlighting the girls' determination to overcome obstacles and improve their skills.

While the inventions are central to the plot, the series also explores the friendships and camaraderie among the characters. Their interactions are lighthearted and often humorous, with moments of growth and learning as they navigate both their projects and their personal lives. The tone remains upbeat and optimistic, reflecting the girls' passion for their club activities and their shared sense of accomplishment.

Overall, "Hōkago no Tinker Bell" presents a charming and straightforward narrative centered on creativity, collaboration, and the small but meaningful triumphs of everyday life. The series appeals to viewers who enjoy slice-of-life stories with a focus on ingenuity and friendship.