"Pure Puri Children" is a manga series that revolves around the lives of a group of elementary school students who form a club dedicated to creating and performing magical girl shows. The story is set in a small, rural town and centers on the dynamics between the children as they navigate their creative endeavors, friendships, and personal challenges.

The protagonist, Yui, is a cheerful and imaginative girl who dreams of becoming a magical girl. She is joined by her classmates, including the shy and reserved Aoi, the energetic and mischievous Riko, and the pragmatic and slightly cynical Haruka. Together, they form the "Pure Puri Children" club, using their limited resources to craft costumes, write scripts, and stage performances for their peers. The club’s activities often lead to humorous and heartwarming situations as the children learn to collaborate and overcome obstacles.

As the story progresses, the children’s individual personalities and backgrounds are explored. Yui’s unwavering optimism and determination inspire her friends, while Aoi gradually gains confidence through her involvement in the club. Riko’s playful nature often causes minor conflicts, but her creativity and enthusiasm are invaluable to the group. Haruka, initially skeptical of the club’s purpose, begins to appreciate the joy and camaraderie it brings, softening her pragmatic outlook.

The narrative also delves into the children’s interactions with their families and the broader community. Their performances attract the attention of other students and adults, leading to both support and challenges. The series balances lighthearted moments with subtle reflections on childhood, creativity, and the importance of pursuing one’s passions.

Throughout the manga, the children’s magical girl performances serve as a metaphor for their personal growth and the power of imagination. The story emphasizes themes of friendship, perseverance, and the transformative impact of art, all while maintaining a focus on the innocence and charm of its young protagonists. The series concludes with the children continuing to pursue their dreams, leaving their future adventures open to interpretation.