"Mama wa Poyopoyo-Saurus ga Osuki" centers on the daily life of a young boy named Masaru and his mother, who has an unusual obsession with dinosaurs, particularly the fictional "Poyopoyo-Saurus." The mother’s enthusiasm for dinosaurs permeates every aspect of their household, from meals to decorations, often leading to humorous and chaotic situations. Masaru, while initially embarrassed by his mother’s eccentric behavior, gradually comes to appreciate her unique personality and the warmth she brings to their family life.

The series is structured as a slice-of-life comedy, with each episode presenting self-contained vignettes that highlight the quirky dynamics between Masaru and his mother. The mother’s dinosaur-themed antics frequently clash with Masaru’s desire for a more conventional family life, creating a recurring source of comedic tension. Despite these conflicts, the bond between mother and son remains strong, with moments of genuine affection and understanding woven throughout the narrative.

Supporting characters include Masaru’s classmates and friends, who occasionally become involved in the mother’s dinosaur-themed escapades. These interactions further emphasize the contrast between the mother’s whimsical worldview and the more grounded perspectives of those around her. The series balances its humor with subtle themes of family, acceptance, and the importance of embracing individuality.

The episodic nature of the story allows for a variety of comedic scenarios, ranging from the mother’s attempts to incorporate dinosaurs into everyday activities to Masaru’s efforts to navigate school life while dealing with his mother’s eccentricities. The lighthearted tone and relatable family dynamics make the series accessible to a broad audience, while the dinosaur motif adds a unique and memorable twist to the slice-of-life genre.