Coco resides alone in her expansive mansion with no company except for her cherished black cat, Kuro. As peculiar as Kuro's behavior may be, Coco and Kuro remain inseparable and engage in exciting escapades regularly. However, while Coco remains oblivious to the alarming conditions of their town, her fellow townspeople live in a state of constant dread. They fear not just the menacing peril in their vicinity but also Coco and Kuro. Although Coco continues to relish her peaceful existence with Kuro, her idyllic existence could be rudely interrupted in due course.