Despite having important heavenly duties, Yo-rang, a mischievous fox, preferred to spend his days frolicking and playing tricks. During a festival for the prestigious "Book of Wishes," which could lift the black fox's curse, Yo-rang caused chaos by tossing the valuable book. Now, the black fox's dark magic posed a threat to heaven, and Yo-rang was responsible for the mess. In an effort to fix his mistake, Yo-rang went on a search for the book and met Kang-hyun, a boy who recently moved to the Fox Village with his father after losing his mother as a child. Together, they faced challenges from the black fox, who sought to stop them at every turn. However, their friendship grew stronger as they continued their quest and eventually succeeded in finding the book, solidifying their bond as resilient friends.