On the edge of a bustling metropolis, an abandoned park has become a paradise for stray cats. A cat named Rose is not willing to spend her life in this garden, nor is she willing to get married and have children like her good friend Rose. By chance, she learned that by entering a cat hot spring, she could wash away the marks of stray cats and enter the human world. In order to get tickets to the cat hot springs, Rose signed an agreement with the "ticket seller" Colonel, giving up her freedom as a cat. From then on, she started traveling to and from the cat hot springs and the park. One day, she met the handsome man on the road and took her into the human world...