One day, a large dog named Peritas is out on a walk when he comes across two abandoned kittens. Peritas, who lives with an unnamed novelist, cannot bear to leave the weak and helpless pair behind. Without telling his owner, he secretly brings them back to the mansion where they live.

The initial conflict arises from this secret. Peritas must hide the kittens from his owner while they drink his water and eat his food. As the kittens quickly regain their health and energy, their natural mischievous and playful behavior makes it increasingly difficult for the earnest and gentle Peritas to keep them concealed. The central storyline follows this unlikely, newly formed family as the responsible but anxious dog tries to protect the two lively young cats from being discovered.

The setting is primarily the novelist’s residence, a house that becomes a stage for the daily comedy of errors as the curious kittens explore their surroundings while Peritas nervously tries to maintain order and secrecy. The manga is a family story that highlights the warm and sometimes chaotic bond between the serious, kind-hearted large dog and the two rambunctious kittens.

The narrative is structured as a short, serialized work. A notable aspect is the inclusion of a special report at the end of the first volume, which shifts from fiction to practical information. This section features an interview with a veterinarian who provides real-world advice on what a person should actually do if they find abandoned kittens.