Perry is a pet animal owned by Kuina, a shopkeeper who appears in Libra of Nil Admirari. Kuina mentions that Perry was brought from a foreign country, which gives the animal an unusual origin within the story's historical setting. Perry is a small, lively companion who loves playing around the shop and becomes especially playful when Tsugumi Kuze comes to visit. Perry enjoys Tsugumi's company and responds affectionately when she hugs it and calls it cute, suggesting a friendly, attention-loving nature. In the story, Perry functions as a minor but warm presence, appearing in moments connected to Kuina's shop and adding a touch of everyday comfort to scenes involving the main characters. The closest bonds Perry has are with Kuina, its owner and caretaker, and with Tsugumi, who treats the pet with visible fondness during her visits. Perry does not undergo any personal development or change over the course of the story, and it has no special or supernatural abilities; its role is that of an ordinary, affectionate pet whose main traits are playfulness, curiosity, and enjoyment of human attention.