"Marumaru Manul" is a short-form anime series that centers around the daily life of a manul, a small wild cat known for its distinctive, grumpy expression. The narrative is episodic, with each episode presenting humorous and lighthearted vignettes of the manul's interactions with its environment and other animals. The manul's stoic and often deadpan demeanor contrasts with its curious and occasionally clumsy behavior, creating a comedic dynamic.

The series features a cast of anthropomorphic animals, including a red panda, a raccoon dog, and a snow leopard, each contributing to the manul's misadventures. The red panda is energetic and playful, often dragging the manul into various escapades, while the raccoon dog is more laid-back and serves as a foil to the manul's grumpiness. The snow leopard, with its calm and regal presence, occasionally provides a voice of reason or becomes an unwitting participant in the manul's antics.

The plot is driven by the manul's attempts to navigate everyday situations, such as foraging for food, dealing with the changing seasons, or interacting with other animals. These scenarios are often exaggerated for comedic effect, highlighting the manul's unique personality and the absurdity of its circumstances. Despite its short runtime, the series effectively captures the charm of its characters and the humor in their interactions, making it an engaging watch for fans of slice-of-life and animal-themed anime.